The HyperX Pulsefire Haste 2 Core Wireless is an ultra-lightweight, high-performance gaming mouse designed for speed, precision, and long-lasting comfort. Featuring dual-mode wireless connectivity and an operating weight of just 70 grams, it delivers low-latency competitive gaming powered by a single AAA battery. ✅ Full Specifications: Model: HyperX Pulsefire Haste 2 Core Wireless (White Edition / 8R2E7AA) Interface / Connection: Dual Wireless Connection Modes: High-speed 2.4GHz Wireless (via included USB-A nano receiver) Bluetooth 5.2 (Power-efficient mode for casual use and multi-device pairing) Interface / Connection: Dual Wireless Connection Modes: High-speed 2.4GHz Wireless (via included USB-A nano receiver) Bluetooth 5.2 (Power-efficient mode for casual use and multi-device pairing) Performance & Sensor: Sensor Type: HyperX Custom Core Optical Sensor Max Resolution: Up to 12,000 DPI DPI Presets: 400 / 800 / 1600 / 3200 DPI Tracking Speed: 300 IPS Acceleration: 35G Polling Rate: Up to 1,000Hz (1ms response time) Performance & Sensor: Sensor Type: HyperX Custom Core Optical Sensor Max Resolution: Up to 12,000 DPI DPI Presets: 400 / 800 / 1600 / 3200 DPI Tracking Speed: 300 IPS Acceleration: 35G Polling Rate: Up to 1,000Hz (1ms response time) Switches & Durability: Main Left/Right Switches: Tactile TTC Gold Switches Switch Lifespan: Rated for up to 20 million clicks Total Buttons: 6 programmable buttons (including 2 thumb side buttons) Switches & Durability: Main Left/Right Switches: Tactile TTC Gold Switches Switch Lifespan: Rated for up to 20 million clicks Total Buttons: 6 programmable buttons (including 2 thumb side buttons) Material & Build: Durable solid-upper shell with low-friction PTFE skates for seamless gliding across cloth mouse pads Design & Form Factor: Lightweight, symmetrical ergonomic frame suitable for various grip styles (palm, claw, fingertip) Lighting Effects: Customizable onboard LED RGB lighting Battery & Power: Battery Type: User-replaceable, 1x AAA Alkaline Battery Battery Life: Up to 100 hours (on 2.4GHz mode) or up to 200 hours (on Bluetooth mode) Battery & Power: Battery Type: User-replaceable, 1x AAA Alkaline Battery Battery Life: Up to 100 hours (on 2.4GHz mode) or up to 200 hours (on Bluetooth mode) Security & Software: Fully compatible with HyperX NGENUITY software for button remapping, macro recording, and custom RGB profile management Compatibility: PC, Xbox Series X|S, Xbox One, PlayStation 5 (PS5), PlayStation 4 (PS4), and Mac Dimensions: Approx. 124.3 x 66.8 x 38.2 mm Weight: Mouse Only: Approx. 60 grams Operating Weight (with AAA battery): Approx. 70 grams Weight: Mouse Only: Approx. 60 grams Operating Weight (with AAA battery): Approx. 70 grams
Led Desk Lamp REMAX RT-E815 ReSee Series Smart Eye-Caring 1500mAh RT-E815 With Container · Eye-caring lightning · Large-area lighting · 1500mAh · Delayed light-off · Soft lighting · Stepless dimming · Pen/phone holder · With rechargeable battery · Plug and use · A soft hose of 360-degree adjustment.
Remax F21 Ruiyal Series – Oscillating water‑cooling fan with 4,000 mAh battery, digital display, and 6 wind levels.Portable and stylish small-table fan with 3 oscillation modes and mist spray cooling. Model: Remax F21 Ruiyal Series Water‑Cooling Oscillating Fan (White) Battery & Power: Built‑in 4,000 mAh battery; USB‑C rechargeable (details unspecified) Cooling Method: Water‑cooling spray system with turbine-style fan blades Wind Speed: 6 adjustable speed levels Oscillation: 3 movement modes—approx. 45°, 90°, or 120° Display & Controls: Digital display showing mode, speed, and battery indicators Dimensions & Weight: Compact tabletop size, ~868 g Power Consumption: Around 8W rated power
BenQ MOBIUZ EX2710 27″ Display Screen Size 27 inch Panel Type IPS Backlight Technology LED backlight Resolution (max.) 1920×1080 Brightness (typ.) 350 nits Brightness (peak)(HDR) 400 nits HDR HDR10 Native Contrast 1000:1 Viewing Angle (L/R) (CR>=10) 178°/178° Response Times (GtG) 2 ms Response Times (MPRT) 1 ms Refresh Rate (Hz) 144 Color Gamut 99% sRGB Color Mode Cinema HDRi, ePaper, FPS, Game HDRi, HDR, M-Book, Racing game, RPG, sRGB, Standard Aspect Ratio 16:9 Display Colors 16.7 million color PPI 82 Display Screen Coating Anti-Glare Color Temperature Bluish, Normal, Reddish, User Define Gamma 1.8 – 2.6 HDCP 2.2 OSD Language Arabic, Chinese (simplified), Chinese (traditional), Czech, Deutsch, English, French, Hungarian, Italian, Japanese, Korean, Netherlands, Polish, Portuguese, Romanian, Russian, Spanish, Swedish AMA Yes Audio Built-in Speaker 2.5Wx2 Headphone Jack Yes Power Voltage Rating 100 – 240V Power Supply Built-in Power Consumption (normal) 22 W Power Consumption (max) 58 W Power Consumption (sleep mode) <0.5 W Dimension and Weight Tilt (down/up) -5˚ – 20˚ Swivel (left/right) 20˚/ 20˚ Height Adjustment Stand 130 mm Dimensions (HxWxD) (mm) 409.6 – 539.6×614.1×216.7 Dimensions (HxWxD) (inch) 16.1 – 21.2×24.2×8.5 Dimensions (HxWxD) (w/o Base) (mm) 382.2×614.1×64.1 Dimensions (HxWxD) (w/o Base) (inch) 15.1×24.2×2.5 Net Weight (kg) 6.2 Net Weight (lb) 13.7 Net Weight (w/o Base) (kg) 4 Net Weight (w/o Base) (lb) 8.8 VESA Wall Mount 100×100 mm Accessories Other Accessories QSG, Warranty Card Connectivity HDMI (v2.0) 2 DisplayPort (v1.2) 1 Eye Care Flicker-free Technology Yes Low Blue Light Yes Brightness Intelligence Plus (B.I.+) Yes Color Weakness Yes ePaper Yes Certification TUV Certificate Flicker-free, Low Blue Light Video Enjoyment HDRi Yes Professional Video Format Support Yes Specifications: BenQ MOBIUZ EX2710 27″ Screen Size 27 inch Panel Type IPS Backlight Technology LED backlight Resolution (max.) 1920×1080 Brightness (typ.) 350 nits 1 Year Warranty
The Cudy M1200 AC1200 Mesh WiFi System provides seamless whole-home coverage with stable dual-band speeds up to 1200Mbps. Designed to eliminate dead zones, it delivers smooth roaming, strong signal performance, and reliable connectivity for homes and offices. AC1200 Dual Band WiFi – Combined speeds of up to 1200Mbps (300Mbps on 2.4GHz + 867Mbps on 5GHz) for streaming, browsing, and gaming. Whole-Home Mesh Coverage – Multiple units work together to create a single seamless network, eliminating WiFi dead zones. Seamless Roaming – Automatically connects your devices to the strongest signal as you move around your home. Gigabit Ethernet Ports – High-speed wired connections for smart TVs, gaming consoles, and PCs. Easy Setup & Management – Quick installation and control through a user-friendly interface or mobile app. Flexible Expansion – Easily add more mesh units to extend coverage anytime. Stable & Reliable Performance – Designed for multiple connected devices with consistent speed and signal strength. Gigabit Ethernet Ports (WAN/LAN) Dual Band WiFi (2.4GHz & 5GHz) Mesh Networking Technology WiFi Roaming Support Wireless Security (WPA/WPA2)
The MSI MAG 273QP QD-OLED X24 is a stunning gaming monitor with sharp visuals and smooth performance. This display brings vibrant colors and deep contrasts to every game and movie. Moreover, its QD-OLED panel delivers lifelike pictures that feel rich and alive. Therefore, it fits well for gamers, creators, and everyday users. First, the screen quality is excellent with bright highlights and deep blacks. Every scene looks clear and detailed, making games more immersive. In addition, the wide color range enhances photos and videos. This means visual content feels more real and exciting on this screen. Also, the display offers consistent colors from different viewing angles. Next, the refresh rate is fast, so motion stays smooth and fluid. This helps with fast games and video content. Furthermore, adaptive sync technology reduces screen tearing for a better experience. As a result, gaming feels responsive and enjoyable without lag or blur. Players will notice sharper movement in games. The design is sleek and modern with thin bezels. Therefore, it looks great on any desk and feels like a premium setup. Also, the stand is adjustable for height and tilt. This makes long sessions more comfortable and easy to position. Meanwhile, the built-in speakers add basic audio without extra devices. Connectivity is strong with multiple ports for peripherals. You can easily connect consoles, PCs, and other gadgets. Moreover, the monitor supports high bandwidth for crisp image output. This makes it ready for current and future hardware demands. Overall, the MSI MAG 273QP QD-OLED X24 delivers top visuals, fluid performance, and practical features. It combines quality display and functionality in one package. For gamers and creators alike, this monitor is a smart choice for sharp graphics and smooth play. Specifications: Display : 27″ QD-OLED Resolution : 2560 x 1440 (WQHD) Refresh Rate : 240Hz Response Rate : 0.03ms (GTG)
The BenQ GL2780 27″ 75Hz Monitor is a practical and affordable choice for everyday use and light gaming. It features a 27-inch Full HD screen that delivers sharp visuals and clear details for work or play. The monitor offers a 75Hz refresh rate and a fast 1ms response time for smooth motion and reduced blur. Its LED backlight provides good brightness, while the anti-glare screen helps reduce reflections in bright rooms. With BenQ Eye-Care technology, including Flicker-Free and Low Blue Light modes, your eyes stay comfortable longer. The Brightness Intelligence feature adjusts the screen brightness based on room lighting for better viewing. You can connect the monitor easily using HDMI, DisplayPort, VGA, or DVI-D inputs, giving flexibility with devices. It also includes built-in 2W speakers and a headphone jack for simple audio without needing extras. The stand allows tilt adjustment, so you can set the best viewing angle for your desk setup. It’s also VESA mount compatible, giving you the option to mount it on a wall or arm. The design is sleek and clean, fitting nicely in any home office, school, or entertainment space. With solid performance and user-friendly features, it’s a great option for students, professionals, and casual gamers. The BenQ GL2780 27″ 75Hz Monitor offers reliable performance, smooth visuals, and great eye comfort at a budget-friendly price. Specifications: Display : 27″ Resolution : FHD 1920 x 1080 Refresh Rate : 75Hz Response Time : 1ms Speaker : Integrated
BATTERY DELL F3YGT 7.6V 60Wh Type F3YGT Battery for Dell Latitude 7480 7490 7280 7290 7380 7390 P73G001 P73G002 P28S001 P28S002 P29S002 DM3WC 2X39G DM6WC 451-BBYE 453-BBCF P28S P73G KG7VF 4-Cell About this item REPLACE BATTERY PART : 7.6V 60 WHr 4-Cell F3YGT battery replace part F3YGT DM3WC 2X39G 0DM3WC 0F3YGT 451-BBYE 453-BBCF KG7VF. (Only replace with type 60Wh battery, NOT fit DJ1J0 42WHr 3-Cell! Please check your original battery to make sure you get the correct replacement battery!) FIT LAPTOP MODELS: For Dell Latitude 12 7000 7280 7290 Latitude 13 7000 7380 7390 Latitude 14 7000 7480 7490 Latitude 7280 7290 7380 7390 7480 7490 E7280 E7290 E7380 E7390 E7480 E7490 P28S P73G P28S001 P28S002 P73G001 P73G002 Series laptop. (NOT fit for Dell Latitude 7390 2-in-1 Series) SPECIFICATION: Model Name: 60Wh Standard Rechargeable Li-ion Battery Type F3YGT; Battery Type: Li-Ion Polymer; Voltage: 7.6V; Capacity: 60Wh; Cells: 4-cell; Size: About 9.37×3.78×0.22inch; Weight: About 10OZ / 0.63lb; Condition: 100% New; Life span: About 300-500 discharge per charge cycles; Packages includes: 1PC F3YGT laptop battery(with two free screwdrivers and user manual for easy installation, battery cable NOT included)
Fast-charging feature available on select iPhone and iPad models.
LG UltraFine 27 inch 4K UHD IPS Monitor 27UN880 is designed for clear visuals and flexible workspace setup. It features a 27-inch IPS display with 4K UHD resolution and USB Type-C connectivity. Additionally, it supports VESA DisplayHDR 400 and sRGB 99% color coverage. Therefore, it works well for office tasks, creative work, and content viewing. The LG UltraFine 27 inch 4K UHD IPS Monitor 27UN880 delivers 3840 × 2160 resolution with a 60Hz refresh rate and 5ms response time. Moreover, it includes 350 nits brightness and a 1000:1 contrast ratio for balanced image quality. It provides USB Type-C with 60W power delivery, two HDMI ports, one DisplayPort, and headphone out. In addition, the Ergo Stand supports extend, retract, swivel, height, pivot, and tilt adjustment for better comfort. Furthermore, the monitor includes AMD FreeSync, Reader Mode, Flicker Safe, and built-in speakers for smoother daily use. As a result, users can improve comfort and workflow during long sessions. It also supports VESA 100 × 100 wall mounting for flexible desk arrangements. Specifications: 27-inch IPS display with 3840 × 2160 4K UHD resolution USB Type-C with 60W power delivery VESA DisplayHDR 400 with sRGB 99% color gamut Ergo Stand with full ergonomic adjustment HDMI, DisplayPort, USB hub, and built-in speakers
OEM-quality touchpad replacement for MacBook Air 13.6″ (Model A2681, 2022)—available in Gray, Gold, Silver, and Blue to match your original chassis color. Precision-engineered for seamless Force Touch performance and smooth gesture control. Compatible With: MacBook Air 13.6-inch (2022, Model A2681) with M2 chip—includes all color variants: Space Gray, Gold, Silver, and Midnight Blue. Part Type: Touchpad only—does not include the flex cable, connector, or mounting brackets. Intended for technicians reusing the original cable or transferring it during repair. Color-Matched Finish: Available in all four official A2681 colors to maintain aesthetic consistency with your MacBook’s lower case. Force Touch Support: Full compatibility with Force Touch gestures, haptic feedback, and multi-touch functionality (requires original Taptic Engine and logic board). OEM Build Quality: Matches Apple’s original surface texture, curvature, and responsiveness—ensures consistent click feel and tracking accuracy. Installation Note: Requires careful transfer of the original flex cable and Taptic Engine (if not already attached). Full bottom case disassembly is necessary. Recommended for professional repair technicians.
Digital Device Laptop Keyboard Compatible for MacBook AIR 13″ A1369 A1466 (MID 2011- MID 2017) US Layout 【Unique】Pls see detail compatible models in description below. 【Safe】Easy for you replace your faulty, cracked or broken keyboard ,seller remind that you should replace the keyboard in the off state. All pictures are taken from the real item, please check carefully before bidding, Replacement and high quality, Replace your faulty, cracked or broken keyboard. Each keyboard is tested before shipping Compatibility: MacBook Air 13″ A1369 Mid 2011: MC965LL/A (1.7 GHz Core i5) Mid 2011: MC966LL/A (1.7 GHz Core i5) Mid 2011: MD226LL/A (1.8 GHz Core i7) Compatibility: MacBook Air 13″ A1466 Mid 2012: MD231LL/A (1.8 GHz Core i5) Mid 2012: MD232LL/A (1.8 GHz Core i5) Mid 2012: MD232LL/A (2.0 GHz Core i7) Mid 2013: MD760LL/A (1.3 GHz Core i5) Mid 2013: MD761LL/A (1.3 GHz Core i5) Mid 2013: MD761LL/A (1.7 GHz Core i7) Early 2014: MD760LL/B (1.4 GHz Core i5) Early 2014: MD761LL/B (1.4 GHz Core i5) Early 2014: MD761LL/B (1.7 GHz Core i7) Compatibility: Early 2015: MJVE2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7) Early 2015: MJVG2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7) Identifying Numbers APN #: 661-6059, 661-6635, 661-7480
The Asus VA279HG22 27″ 120Hz Eye Care Gaming Monitor offers smooth visuals and great comfort for your eyes. Its 27-inch Full HD IPS screen displays rich colors and wide viewing angles for any setup. A 120Hz refresh rate delivers fluid motion, perfect for gaming or watching fast-paced videos. The 1ms MPRT response time reduces blur for clearer, sharper images. Adaptive-Sync technology helps remove screen tearing for a seamless gaming experience. You’ll enjoy smoother gameplay with less stuttering or lag. The monitor includes Flicker-Free and Low Blue Light features to reduce eye strain. Even after hours of use, your eyes stay more comfortable. An anti-glare screen improves visibility in bright or sunny environments. It’s ideal for work or play in any room. HDMI and VGA ports offer easy connection to your devices. You also get a headphone jack for private listening. The monitor has a slim, modern, and frameless design for a clean look. It fits into any gaming, work, or study space easily. Tilt adjustment allows you to set the perfect viewing angle. It’s also VESA mount compatible for flexible installation. You can customize settings using ASUS DisplayWidget Center software. Adjust brightness, color, and more with just a few clicks. GamePlus features like crosshair overlays and timers give an edge in competitive gaming. These tools help improve focus and reaction time. The Asus VA279HG22 27″ 120Hz Eye Care Gaming Monitor combines performance and comfort in one stylish display. It’s a great choice for gamers, students, and professionals. Specifications: Display : 27″ IPS Resolution : 1920×1080 Refresh Rate : 120Hz Response Rate : 1ms
The LG UltraFine 27″ 4K UHD IPS LED Monitor offers stunning picture quality with vibrant colors and sharp details. It is perfect for professionals and creatives who need accurate visuals. With 4K UHD resolution (3840 x 2160), this monitor delivers four times the detail of Full HD screens. The IPS technology ensures wide viewing angles, making images look great from any position. This LG UltraFine 27-inch monitor supports 99% of the sRGB color gamut, providing true-to-life colors. It is ideal for photo editing, video production, and graphic design. The USB-C and DisplayPort connectivity make it easy to connect to laptops, desktops, and other devices. With USB-C charging, you can power your laptop while using the monitor, reducing cable clutter. The LG UltraFine 27″ 4K UHD IPS LED Monitor features a sleek, modern design that fits any workspace. Its adjustable stand allows you to tilt and change the height for comfortable viewing. The anti-glare screen reduces reflections, making it easier to work in bright environments. The 5ms response time ensures smooth visuals, perfect for fast-moving content. This 4K UHD monitor is also great for entertainment. Enjoy watching movies, streaming videos, or playing games with crystal-clear detail. The HDR10 support enhances brightness and contrast for a more immersive experience. The built-in speakers provide decent audio, so you don’t always need external speakers. With Flicker-Free technology and a Blue Light filter, this LG UltraFine monitor reduces eye strain, making it ideal for long work sessions. The VESA compatibility allows for easy wall mounting or monitor arm installation. Whether you are a creative professional or a multitasker, this monitor boosts productivity and enhances visual experience. Specifications: Display : 27″ IPS Resolution : 3840 x 2160 Refresh Rate : 60Hz Response Rate : 5ms
Looking for a monitor that enhances your gaming and multimedia experience? Look no further than the AOC 27B2HM2. With its 27-inch screen size and 100Hz refresh rate, it offers a captivating viewing experience. Transitioning to performance, the 100Hz refresh rate ensures smooth and fluid visuals, eliminating motion blur and screen tearing. Whether you’re gaming, streaming, or watching movies, every frame is displayed with precision and clarity. Moreover, the monitor’s Full HD resolution delivers crisp details and vibrant colors, bringing your content to life. Dive into your favorite games or immerse yourself in cinematic adventures with stunning clarity and realism. In terms of design, the AOC 27B2HM2 features a sleek and modern aesthetic that complements any gaming setup or workspace. Its slim bezels maximize screen real estate, providing an expansive viewing area without distractions. Furthermore, with multiple connectivity options including HDMI and VGA ports, this monitor offers versatility and compatibility with a wide range of devices. Easily connect your gaming console, PC, or laptop and enjoy immersive entertainment. In conclusion, the AOC 27B2HM2 27″ 100Hz Monitor is the perfect choice for gamers and multimedia enthusiasts seeking exceptional performance and stunning visuals. Elevate your viewing experience to new heights with this feature-packed monitor. Specifications: Display : 27″ VA Resolution : 1920 × 1080 (FHD) Refresh Rate : 100Hz Response Rate : 4ms
Acer Nitro VG270bmipx 27 Inch Screen size 27 Inches Display resolution maximum 1920 x 1080 Pixels Brand Acer Special feature AMD FreeSync, Blue Light Filter, Frameless, Tilt Adjustment, Flicker-Free Refresh rate 75 Hz Connectivity technology VGA + HDMI + DP + Audio in/out Aspect ratio 16:9 Specific uses for product Personal, Gaming Response time 1 Milliseconds Colour Black/Red
The Samsung S3 S30GD 22″ 100Hz Monitor offers clear Full HD visuals on a compact 22-inch IPS display. Additionally, the panel delivers consistent colors and wide viewing angles, which makes it suitable for both work and entertainment. The 100Hz refresh rate also ensures smoother motion compared to standard displays. Moreover, Game Mode enhances contrast and visibility during videos and casual gaming. Therefore, scenes appear clearer and more detailed in darker areas. The monitor also includes Eye Saver Mode and flicker free technology, which help reduce eye strain during long sessions. Furthermore, the design is simple and practical for everyday setups. In addition, connectivity includes HDMI and VGA ports for easy connection to different devices. Overall, the Samsung S3 S30GD 22″ 100Hz Monitor is a reliable choice for daily use. Specifications: 22‑inch Full HD (1920 x 1080) IPS panel displays vivid colors and wide viewing angles. Smooth motion with up to 100Hz refresh rate for better video and game performance. Game Mode optimizes contrast and image settings for interactive content. Eye Saver Mode and flicker‑free technology help reduce eye strain during long sessions. Simple connectivity with one HDMI port and one D‑Sub (VGA) port.
About this item 📱 Versatile Connectivity: Connect effortlessly with Bluetooth 4.2 to your smartphones, iPads, and computers. Also supports U disk, TF card (up to 32G), AUX input, and FM radio for versatile playback options. 📲 🔊 Powerful Sound with Heavy Bass: Enjoy rich, high-volume stereo sound with a powerful 20W output and a built-in heavy subwoofer, delivering an immersive audio experience for your home. 🎶 📻 Built-in FM Radio: Stay tuned to your favorite stations with the built-in FM radio feature, ensuring you never miss out on the latest news, music, and more. 📡 📞 Hands-Free Calling: Equipped with a clear call feature, this speaker allows you to answer phone calls directly through the speaker without lifting your phone. Perfect for multitasking! 🗣️ 📞 Hands-Free Calling: Equipped with a clear call feature, this speaker allows you to answer phone calls directly through the speaker without lifting your phone. Perfect for multitasking! 🗣️
The Moxom MX-ST16 is a 12-in-1 safety power strip with 4 AC outlets, 7 USB-A ports, and 1 USB-C PD port. It supports up to 2500W / 10A total load and provides fast USB charging (PD 20W + QC 18W), making it a practical charging hub for home, office, and desk setups. ⚡ 12-in-1 Multi-Output Design: 4 AC sockets + 7 USB-A + 1 USB-C PD allow powering and charging many devices at once. 🔋 Fast USB Charging: USB-C PD up to 20W for modern phones and tablets. QC fast-charge up to 18W on supported USB-A ports. Smart IC balances output across ports for safe, efficient charging. 🔋 Fast USB Charging: USB-C PD up to 20W for modern phones and tablets. QC fast-charge up to 18W on supported USB-A ports. Smart IC balances output across ports for safe, efficient charging. 🛡️ Multi-Safety Protection: Overload protection, surge/over-voltage protection, over-current and overheating protection, plus foreign-object detection. 👶 Child-Safety Shutters: Safety doors on AC outlets reduce accidental contact. ⏻ One-Key Master Switch: Single button controls all outlets for easy power cut-off. 📏 Long Extension Cord: About 2 meters for flexible placement. 🧊 Heat-Resistant Build: ABS + PC construction designed for durability under continuous load.
Used OEM Original Apple Logic Board Working, 2018 Model 2.7Ghz I7 251gb 16gb (A1989) + Original Touch ID, Tested using latest industry hardware diagnostic software, Fresh pull from fully Working nearly new unit. SPECIFICATION:
