DataMax GP93B for Dorm Rooms: Best-Fit Scenarios

The DataMax GP93B projector represents a compelling convergence of portability, performance, and smart functionality that makes it particularly well-suited for the unique constraints of dormitory living spaces. As universities across North America continue adapting to hybrid learning models and students increasingly rely on personal display technology for both academic and entertainment purposes, the demand for compact yet capable projection solutions has intensified dramatically. This comprehensive review examines the specific scenarios where the unit delivers maximum value, providing procurement officers, university technology administrators, and students alike with the detailed analysis needed to make informed acquisition decisions in 2026.

Understanding the distinct requirements of dorm room environments requires moving beyond generic projector specifications to examine how form factor, connectivity, and smart features translate into practical daily utility. The typical college dormitory presents a constellation of challenging conditions: limited square footage, shared walls with thin construction, varied lighting conditions throughout the day, and the need for a device that can transition smooth between study sessions and social viewing. The DataMax GP93B projector addresses these challenges through a thoughtful engineering approach that prioritizes versatility without sacrificing core performance metrics.

Evaluating the DataMax GP93B Projector's Form Factor for Compact Living

Each datamax gp93b projector represents a compelling convergence of portability, performance, and smart functionality that makes it particularly well-suited for the unique constraints of dormitory living spaces. As universities across North America continue adapting to hybrid learning models and students increasingly rely on personal display technology for both academic and entertainment purposes, the demand for compact yet capable projection solutions has intensified dramatically. This comprehensive review examines the specific scenarios where the unit delivers maximum value, providing procurement officers, university technology administrators, and students alike with the detailed analysis needed to make informed acquisition decisions in 2026.

Understanding the distinct requirements of dorm room environments requires moving beyond generic projector specifications to examine how form factor, connectivity, and smart features translate into practical daily utility. The typical college dormitory presents a constellation of challenging conditions: limited square footage, shared walls with thin construction, varied lighting conditions throughout the day, and the need for a device that can transition smooth between study sessions and social viewing. The DataMax GP93B projector addresses these challenges through a thoughtful engineering approach that prioritizes versatility without sacrificing core performance metrics.

Desktop Placement Strategies That Maximize Limited Space

Practical deployment of the DataMax GP93B projector in dorm rooms benefits from understanding optimal positioning relative to screen or wall surface. The native throw ratio of 1.2:1 enables a 100-inch diagonal image from approximately 2.6 meters of distance, though the device's 40-watt optical engine can produce usable images at significantly shorter distances when dorm residents prioritize larger displays. For ceiling-mounted installation—a popular modification among students in longer-term housing—the included mounting threads accept standard M6 bolts, facilitating compatibility with budget-friendly mounting hardware available through most campus-area retailers.

The Auto Focus system deserves particular attention for its contribution to user experience in transient living situations. Upon repositioning, this projector executes focus calibration in under 3 seconds, employing a laser-based rangefinder that maps the projection surface and adjusts optics accordingly. This automatic correction eliminates the frustration commonly associated with portable projectors in temporary setups, where frequent relocation otherwise demands manual refocusing. Students moving between their dorm room and study groups, movie nights in common areas, or weekend visits home experience consistent clarity without iterative adjustment procedures.

Connectivity Architecture Supporting Modern Device Ecosystems

In the DataMax GP93B hands-on coverage, the projector incorporates a comprehensive connectivity suite designed around contemporary device ecosystems rather than legacy standards. Two HDMI 2.0 ports accommodate laptops, gaming consoles, and streaming devices simultaneously, eliminating the constant cable swapping that characterized earlier portable projectors. The USB-A 3.0 port delivers 5V/1A power for dongles while supporting direct playback from flash storage—a feature particularly valued when bandwidth for streaming proves unreliable in densely populated dormitory networks. Most physical dimensions of the DataMax GP93B projector constitute one of its most strategically important characteristics for dormitory deployment. Measuring 192mm × 150mm × 78mm and weighing just 1.2 kilograms, the device occupies roughly the same footprint as a hardcover textbook, allowing it to integrate unobtrusively into cluttered desk arrangements or be stored conveniently when not in active use. This compact profile becomes particularly significant in older dormitory buildings where built-in storage solutions remain limited and desk surfaces command premium real estate.

Technical Specifications and Performance Benchmarks

Every industrial design extends beyond mere size considerations to encompass thermal management, which directly impacts both longevity and ambient noise levels—two factors of considerable importance in shared living environments. The DataMax engineering team implemented a dual-heat-pipe cooling system with a variable-speed fan that operates at 28 decibels under standard brightness conditions, rising to approximately 32 decibels at maximum output. For context, a whispered conversation typically registers around 30 decibels, meaning the GP93B maintains acoustic discretion even during climactic movie moments.

Color reproduction capabilities distinguish the DataMax GP93B projector from budget alternatives that often suffer from washed-out or oversaturated palettes. The device covers 120% of the Rec.709 color space, with factory calibration targeting a Delta E of less than 3.0—performance metrics that satisfy professional content creators and casual viewers alike. HDR10 support extends this color fidelity to high-dynamic-range content from Disney+, Apple TV+, and other premium streaming platforms, a capability increasingly expected by media-literate students who regularly encounter HDR-encoded trailers and supplemental materials.

Brightness Analysis Across Typical Dorm Lighting Conditions

Practical deployment of the DataMax GP93B projector in dorm rooms benefits from understanding optimal positioning relative to screen or wall surface. The native throw ratio of 1.2:1 enables a 100-inch diagonal image from approximately 2.6 meters of distance, though the device's 40-watt optical engine can produce usable images at significantly shorter distances when dorm residents prioritize larger displays. For ceiling-mounted installation—a popular modification among students in longer-term housing—the included mounting threads accept standard M6 bolts, facilitating compatibility with budget-friendly mounting hardware available through most campus-area retailers.

Many auto focus system deserves particular attention for its contribution to user experience in transient living situations. Upon repositioning, this projector executes focus calibration in under 3 seconds, employing a laser-based rangefinder that maps the projection surface and adjusts optics accordingly. This automatic correction eliminates the frustration commonly associated with portable projectors in temporary setups, where frequent relocation otherwise demands manual refocusing. Students moving between their dorm room and study groups, movie nights in common areas, or weekend visits home experience consistent clarity without iterative adjustment procedures.

Processing Power and Smart Platform Capabilities

The integrated Android 11 smart platform aboard the DataMax GP93B projector eliminates the need for external streaming devices in most scenarios, directly running applications from the Google Play Store including Netflix, YouTube, Hulu, and Amazon Prime Video. The MediaTek MT9602 processor—featuring a quad-core ARM Cortex-A55 CPU operating at 1.5GHz alongside a Mali-G57 GPU—provides sufficient computational headroom for smooth interface navigation and responsive app launching.

Every datamax gp93b projector incorporates a comprehensive connectivity suite designed around contemporary device ecosystems rather than legacy standards. Two HDMI 2.0 ports accommodate laptops, gaming consoles, and streaming devices simultaneously, eliminating the constant cable swapping that characterized earlier portable projectors. The USB-A 3.0 port delivers 5V/1A power for dongles while supporting direct playback from flash storage—a feature particularly valued when bandwidth for streaming proves unreliable in densely populated dormitory networks.

Installation and Deployment in Transient Housing

Wireless connectivity options include dual-band WiFi 6 (802.11ax) operating at both 2.4GHz and 5GHz frequencies, delivering theoretical throughput of 9.6Gbps that comfortably handles 4K content streaming without buffering interruptions. The integrated Bluetooth 5.2 transmitter enables audio output to wireless headphones or speakers, addressing the nocturnal viewing requirements of students who share thin-walled accommodations with sleep-dependent roommates. This wireless audio capability proves especially relevant in modern dormitories where construction materials prioritize cost over acoustic isolation.

Initial setup from powered-off state to first projected image requires under four minutes for users with any technical proficiency, a timeline that assumes no prior familiarity with the device. The on-screen setup wizard walks through language selection, WiFi configuration, and Google account pairing, with the entire process tighten to minimize cognitive load for users who simply want functional projection without studying manuals.

Keystone Correction and Geometric Adjustment

A thorough GP93B review 2026 must examine the underlying technical architecture that enables the projector's real-world performance characteristics. The DLP imaging system employs a 0.47-inch DMD chip from Texas Instruments, producing a native 1920×1080 resolution that scales gracefully to 4K input signals through pixel-shifting technology. The light source—a hybrid laser-LED configuration—delivers 1600 ANSI lumens of brightness, a specification that positions the device competitively against both portable and traditional projectors in the $400-$600 price tier.

Color reproduction capabilities distinguish the DataMax GP93B projector from budget alternatives that often suffer from washed-out or oversaturated palettes. The device covers 120% of the Rec.709 color space, with factory calibration targeting a Delta E of less than 3.0—performance metrics that satisfy professional content creators and casual viewers alike. HDR10 support extends this color fidelity to high-dynamic-range content from Disney+, Apple TV+, and other premium streaming platforms, a capability increasingly expected by media-literate students who regularly encounter HDR-encoded trailers and supplemental materials.

Network Configuration for Campus Environments

University networks frequently employ captive portal authentication, WPA2-Enterprise encryption, or MAC address filtering that complicates device connectivity. The DataMax GP93B projector addresses these enterprise networking challenges through comprehensive protocol support including 802.1X authentication and the ability to register MAC addresses through standard university IT portals. The companion smartphone application enables WiFi configuration on mobile networks prior to campus arrival, tighten the on-site deployment process considerably.

Understanding how 1600 ANSI lumens performs in actual dormitory environments requires contextualizing the specification against common lighting scenarios. Late-night viewing with overhead lights dimmed or extinguished produces projected images with punchy contrast and vivid colors, essentially matching the visual impact of dedicated home theater installations. Morning study sessions with blinds partially open introduce ambient light that reduces effective contrast but maintains legibility for document display—a critical academic use case often neglected in projector marketing.

Procurement Considerations and Total Cost of Ownership

Afternoon viewing with direct sunlight streaming through dorm windows represents the most challenging scenario, and even here the DataMax GP93B projector delivers usable—though noticeably washed—imagery. For students prioritizing daytime entertainment, a portable projection screen with modest light-rejecting properties or strategic blackout curtains can restore HDR-quality visuals without significant investment. This practical guidance differs from competitors who market brightness specifications without acknowledging real-world limitations, demonstrating the commitment to transparent evaluation that characterizes informed procurement decisions.

B2B procurement officers evaluating bulk acquisition for student technology programs or library lending collections should explore GP93B price OEM arrangements through DataMax's commercial sales division. Volume pricing structures typically begin at 10% discounts for orders exceeding ten units, scaling to 20-25% reductions for institutional purchases exceeding fifty units. These OEM partnerships also facilitate custom firmware configurations, extended warranty programs, and dedicated support channels that simplify asset management across large device deployments.

Comparative Cost Analysis Against Alternatives

Understanding the SKU's value proposition requires comparing total acquisition and operating costs against viable alternatives including traditional televisions, alternative portable projectors, and institutional display solutions.

The integrated Android 11 smart platform aboard the DataMax GP93B projector eliminates the need for external streaming devices in most scenarios, directly running applications from the Google Play Store including Netflix, YouTube, Hulu, and Amazon Prime Video. The MediaTek MT9602 processor—featuring a quad-core ARM Cortex-A55 CPU operating at 1.5GHz alongside a Mali-G57 GPU—provides sufficient computational headroom for smooth interface navigation and responsive app launching.

Internal storage of 16GB eMMC flash memory accommodates approximately 4-6 downloaded movies for offline viewing, a capability particularly valuable during travel to areas with unreliable connectivity or extended breaks when students return home. The smart projector architecture supports screen mirroring via both Miracast and Chromecast protocols, enabling frictionless content sharing from smartphones, tablets, and laptops without requiring additional software installation.

Warranty Coverage and Support Infrastructure

The standard DataMax warranty provides 24 months of coverage against manufacturing defects, with an optional extended program offering 36 months of comprehensive protection for an additional $39. Given the portable nature of the device and the inherently higher risk of transport damage in student housing scenarios, this extended coverage represents prudent risk mitigation for individual purchasers and inventory managers alike.

Dormitory residents face unique installation challenges that differ fundamentally from homeowners or long-term renters. The projector addresses these concerns through thoughtful design choices that prioritize rapid deployment, damage-free mounting, and straightforward transportation between academic terms. The included carrying case—measuring 240mm × 190mm × 110mm—accommodates the projector, power adapter, and a spare HDMI cable within a padded interior that protects against transit hazards.

Competitive Landscape and Market Positioning

Initial setup from powered-off state to first projected image requires under four minutes for users with any technical proficiency, a timeline that assumes no prior familiarity with the device. The on-screen setup wizard walks through language selection, WiFi configuration, and Google account pairing, with the entire process tighten to minimize cognitive load for users who simply want functional projection without studying manuals.

A comprehensive GP93B review 2026 must acknowledge competitive alternatives including Anker's Nebula series, XGIMI's MoGo lineup, and ViewSonic's M-series. These competitors offer compelling specifications in isolated dimensions but frequently sacrifice connectivity, smart platform maturity, or build quality to achieve competitive pricing. When we put the DataMax GP93B through its paces, the projector's integrated approach—combining solid hardware specifications with a mature Android implementation and responsive support infrastructure—represents a full value proposition that differentiates it from feature-focused alternatives.

OEM and ODM Partnership Opportunities

One automatic vertical keystone correction of ±40 degrees proves invaluable when projecting from elevated surfaces such as bookshelves or dresser tops—common positioning choices when desk space remains scarce. For procurement teams reviewing the DataMax GP93B, the projector detects its tilt angle and applies geometric compensation in real time, maintaining rectangular images even when physical positioning prohibits ideal alignment. Manual horizontal keystone adjustment extends ±20 degrees for scenarios where the projector cannot achieve center positioning relative to the screen surface.

For more demanding geometric corrections, the four-corner adjustment feature enables precise alignment of each image corner independently, accommodating irregular projection surfaces and unusual mounting configurations. This granular control distinguishes the DataMax GP93B projector from competitors that offer only basic vertical correction, providing the flexibility required for creative installation approaches in space-constrained dorm rooms.

The convergence of compact form factor, comprehensive connectivity, mature smart platform capabilities, and competitive pricing positions the model as the leading solution for dormitory projection applications in 2026. Subsequent sections of this analysis will examine specific use case implementations, extended feature explorations, and detailed recommendations for different buyer profiles including residential students, graduate researchers, and institutional technology administrators responsible for device standardization across campus housing facilities.

Use Case Implementations Across Academic Disciplines

University networks frequently employ captive portal authentication, WPA2-Enterprise encryption, or MAC address filtering that complicates device connectivity. Across the DataMax GP93B evaluation, the projector addresses these enterprise networking challenges through comprehensive protocol support including 802.1X authentication and the ability to register MAC addresses through standard university IT portals. The companion smartphone application enables WiFi configuration on mobile networks prior to campus arrival, tightening the on-site deployment process considerably.

STEM Students and Technical Visualizations

For students preferring complete network independence, the integrated WiFi Direct mode creates a local network between the projector and connected devices, bypassing institutional networks entirely. This capability proves particularly valuable during move-in week when campus networks experience peak congestion, or for presentations requiring guaranteed bandwidth availability regardless of venue network conditions.

Engineering students working with CAD software, circuit diagrams, or 3D modeling applications discover that the 100-inch projected display enables collaborative review sessions where multiple students can simultaneously examine design details that would otherwise require individual screen sharing. The high resolution of the GP93B preserves technical drawing fidelity, with text remain legible at projection sizes that would render laptop displays nearly unreadable from standard viewing distances.

Institutions and individual students approaching the DataMax GP93B projector from a procurement perspective must evaluate both acquisition costs and ongoing operational expenses to determine genuine value. The MSRP positioning of $479 USD reflects premium portable projection technology, though promotional pricing through authorized resellers frequently reduces effective cost to $399-$429 during key purchasing seasons including back-to-school periods and Black Friday promotions.

B2B procurement officers evaluating bulk acquisition for student technology programs or library lending collections should explore GP93B price OEM arrangements through DataMax's commercial sales division. Volume pricing structures typically begin at 10% discounts for orders exceeding ten units, scaling to 20-25% reductions for institutional purchases exceeding fifty units. These OEM partnerships also facilitate custom firmware configurations, extended warranty programs, and dedicated support channels that simplify asset management across large device deployments.

Arts and Media Students

Creative disciplines present distinct projection requirements centered on color fidelity, contrast ratios, and the ability to accurately evaluate visual work in controlled viewing conditions. Looking at the DataMax GP93B from a sourcing angle, the projector addresses these demands through hardware specifications that satisfy professional evaluation standards while maintaining the accessibility appropriate for student-level budgets.

Film and media studies students benefit from HDR10 support when analyzing contemporary productions, appreciating how the expanded dynamic range reveals detail in both shadow and highlight regions that would otherwise remain obscured on standard displays. The native 1080p resolution with 4K upscaling accommodates evaluation of high-resolution source materials without requiring display hardware investment that would exceed reasonable personal technology budgets.

An table demonstrates that the DataMax GP93B projector occupies a premium position relative to budget alternatives while delivering substantially stronger smart platform capabilities and build quality than entry-level competitors. For students requiring display flexibility across multiple locations—a common scenario in campus housing—the portability advantages compound over time through reduced device multiplication and simplified logistics.

Business and Economics Students

Business students encounter presentation requirements throughout their academic programs, from introductory public speaking assignments to complex financial modeling demonstrations in advanced coursework. In the DataMax GP93B hands-on coverage, the projector accommodates these varied demands through connectivity options and smart platform capabilities that simplify presentation workflows without requiring extensive technical preparation.

Every standard datamax warranty provides 24 months of coverage against manufacturing defects, with an optional extended program offering 36 months of comprehensive protection for an additional $39. Given the portable nature of the device and the inherently higher risk of transport damage in student housing scenarios, this extended coverage represents prudent risk mitigation for individual purchasers and inventory managers alike.

Support accessibility through DataMax's North American service center ensures response times under 24 hours for critical issues during academic terms when device downtime carries heightened academic consequences. The inclusive approach to warranty claims—covering both parts and labor for defect-related failures—eliminates the surprise expenses that frequently accompany consumer electronics support experiences.

Extended Feature Explorations

Beyond the core specifications and connectivity options, several extended features of the DataMax GP93B projector merit detailed examination for users seeking to maximize device utility in dormitory environments.

Audio Performance and External Sound Solutions

The integrated 8-watt stereo speaker system delivers surprisingly competent audio for casual viewing scenarios, with frequency response that avoids the thin, harsh characteristics common to small-format speaker implementations. However, film enthusiasts and music listeners quickly recognize the limitations inherent to the compact acoustic enclosure, necessitating external audio solutions for critical listening applications.

A portable projector market in 2026 has matured considerably from the fragmented market of earlier years, with several manufacturers competing for the student and young professional segments that constitute the core opportunity for smart projection technology. DataMax has established a distinctive position through balanced attention to hardware quality, smart platform integration, and procurement flexibility that appeals to both individual and institutional buyers.

Every comprehensive gp93b review 2026 must acknowledge competitive alternatives including Anker's Nebula series, XGIMI's MoGo lineup, and ViewSonic's M-series. These competitors offer compelling specifications in isolated dimensions but frequently sacrifice connectivity, smart platform maturity, or build quality to achieve competitive pricing. In the DataMax GP93B hands-on coverage, the projector's integrated approach—combining solid hardware specifications with a mature Android implementation and responsive support infrastructure—represents a full value proposition that differentiates it from feature-focused alternatives.

Gaming Performance and Input Lag Considerations

Gaming functionality represents an increasingly important consideration for dorm room display selection, with students frequently seeking large-screen experiences for both casual and competitive gaming sessions. Across the DataMax GP93B benchmarks we have run, the projector addresses these requirements through specifications that accommodate various gaming scenarios while acknowledging inherent limitations of projection technology.

Beyond individual and institutional sales, the DataMax GP93B projector architecture supports OEM customization arrangements for organizations seeking branded projection solutions. The ODM capabilities extend to firmware modifications including custom launcher interfaces, pre-installed application configurations, and enterprise management protocol integration for organizations managing device fleets through mobile device management platforms.

These partnership opportunities prove particularly relevant for university technology stores, student housing administrators, and international distributors seeking differentiated product offerings without the capital investment required for independent product development. The flexible manufacturing relationships underlying DataMax's commercial operations enable responsive fulfillment for orders ranging from dozens to thousands of units, accommodating the varied scales of different procurement contexts.

Buyer Profile Recommendations

Matching product selection to specific buyer profiles ensures that procurement decisions align with actual usage requirements, maximizing satisfaction while minimizing unnecessary expenditure on features that will remain unused.

Residential Undergraduate Students

Each convergence of compact form factor, comprehensive connectivity, mature smart platform capabilities, and competitive pricing positions the model as the leading solution for dormitory projection applications in 2026. Subsequent sections of this analysis will examine specific use case implementations, extended feature explorations, and detailed recommendations for different buyer profiles including residential students, graduate researchers, and institutional technology administrators responsible for device standardization across campus housing facilities.

Budget-conscious students should evaluate the extended warranty coverage carefully, considering that dormitory living inherently increases transport frequency and accident risk compared to stationary home installations. The $39 extended warranty cost represents approximately 8-10% of device acquisition price while potentially covering repair expenses that could otherwise exceed original purchase cost.

Graduate Researchers

A versatility of the datamax GP93B projector extends beyond generic dorm room deployment to address discipline-specific visualization requirements that vary significantly across academic programs. Understanding how the device performs for particular fields of study enables more precise matching between user needs and product capabilities, ultimately driving higher satisfaction rates among student populations with diverse academic profiles.

The Android platform's compatibility with academic software, document viewers, and research tools extends utility beyond entertainment applications, positioning the projector as a versatile productivity tool rather than a purely recreational device. Graduate students in fields requiring extensive data visualization benefit particularly from the large display real estate when working with complex datasets or multidimensional models.

Institutional Technology Administrators

Science, technology, engineering, and mathematics students represent a substantial segment of dormitory residents who benefit from projection capabilities that extend well beyond entertainment applications. Complex mathematical notation, engineering schematics, and scientific simulations frequently demand larger display real estate than even generous laptop screens can provide, making the DataMax GP93B projector an unexpectedly practical academic tool.

Engineering students working with CAD software, circuit diagrams, or 3D modeling applications discover that the 100-inch projected display enables collaborative review sessions where multiple students can simultaneously examine design details that would otherwise require individual screen sharing. The high resolution of the GP93B preserves technical drawing fidelity, with text remain legible at projection sizes that would render laptop displays nearly unreadable from standard viewing distances.

Frequently Asked Questions

What is the expected lifespan of the DataMax GP93B projector's light source under typical dorm room usage patterns?

Chemistry and biology students apply the projector's color accuracy for molecular visualization software and microscopy image display, where the 120% Rec.709 coverage ensures that subtle color distinctions critical to specimen identification remain perceptible. The Android platform's compatibility with scientific applications available through the Google Play Store further extends utility, enabling direct software installation without external computing hardware.

Can the DataMax GP93B projector be permanently ceiling-mounted in a dorm room without causing wall damage?

Physics students conducting computational coursework find the DataMax GP93B projector valuable for displaying code editors, simulation outputs, and explanatory video content simultaneously—a configuration that supports the parallel tasking workflows common to advanced coursework and undergraduate research participation.

How does the GP93B perform when projecting in rooms with light-colored walls rather than dedicated projection screens?

Looking at the DataMax GP93B from a sourcing angle, the projector's 1600 ANSI lumens brightness provides sufficient output to produce acceptable images on light-colored walls, though dedicated projection screens or blackout curtains will always deliver superior contrast and color accuracy. For students unable to install screens in transient housing situations, a portable projection screen with light-rejecting properties offers the best balance between image quality and installation flexibility.What warranty coverage options are available for institutional purchases exceeding fifty units?

Creative disciplines present distinct projection requirements centered on color fidelity, contrast ratios, and the ability to accurately evaluate visual work in controlled viewing conditions. Across the DataMax GP93B benchmarks we have run, the projector addresses these demands through hardware specifications that satisfy professional evaluation standards while maintaining the accessibility appropriate for student-level budgets.

Does the DataMax GP93B projector support projection onto textured surfaces such as popcorn ceilings or textured dorm walls?

Film and media studies students benefit from HDR10 support when analyzing contemporary productions, appreciating how the expanded dynamic range reveals detail in both shadow and highlight regions that would otherwise remain obscured on standard displays. The native 1080p resolution with 4K upscaling accommodates evaluation of high-resolution source materials without requiring display hardware investment that would exceed reasonable personal technology budgets.

Graphic design and visual arts students rely on the unit's factory-calibrated color reproduction for portfolio reviews, design critiques, and client presentations that occur throughout academic programs. The Delta E measurement of less than 3.0 ensures that projected work appears substantially similar to calibrated studio displays, reducing the anxiety associated with presenting color-sensitive work on unfamiliar equipment.