Specifications Feature Value Feature Value Input/Output Other Sound Mode Extra Bass Mode Category Speakers Use Other Input Power (W) 25-49W Voice Control No Waterproof Yes Support APP No Intelligent Personal Assistant None Audio Crossover Full-Range Number of Loudspeaker Enclosures 2 Power Source None Channels 2 (2.0) Battery Yes Communication USB Speaker Type Portable Cabinet Material Plastic Brand Name QUCAA Origin Mainland China Certification CE
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
The MSI PRO MP165 E6 16″ FHD 60Hz Portable Monitor gives you a compact and light screen for travel and work. Its Full HD resolution shows clear and sharp visuals for documents, videos, and web browsing. The 16-inch size keeps the monitor easy to carry and simple to place. This makes it ideal for laptops, remote work, and on-the-go setups. Moreover, the MSI PRO MP165 E6 16″ FHD 60Hz Portable Monitor uses an IPS panel with good viewing angles. Colors stay fairly accurate when viewed from the side. The anti-glare surface helps reduce reflections under bright light. This enhances comfort when you use the screen outdoors or in bright rooms. In addition, the monitor supports both HDMI and USB-C connections. You can connect laptops, mini-PCs, consoles, or tablets quickly. The USB-C connection allows video signal and power with a single cable. This reduces cable clutter and makes setup easier. The built-in speakers add basic audio support without extra devices. Furthermore, the MSI PRO MP165 E6 16″ FHD 60Hz Portable Monitor remains very thin and lightweight. It weighs around 0.78 kg, making it easy to slip inside a backpack or bag. This portability helps if you travel for work, study, or creative projects. A small, easy protective pouch helps keep it safe on the move. Also, the monitor offers simple tilt adjustment and even supports VESA/pocket-mount or tripod mounting for flexible placement. This lets you set it at a comfortable angle whether at your desk or on the go. The simple and clean design matches different workspaces. Overall, the MSI PRO MP165 E6 16″ FHD 60Hz Portable Monitor gives portability, clarity, and convenience in one compact package. It boosts productivity, enhances mobility, and suits travelers, students, and remote workers. This monitor is a good pick when you want a second screen or a lightweight display for travel and everyday use. Specifications: Display : 16″ IPS Resolution : FHD 1920×1080 Refresh Rate : 60Hz Response Time : 4ms
The Samsung 65″ Neo QLED QN70F 4K Vision AI Smart TV QA65QN70FAUXTW delivers a premium viewing experience with advanced Neo QLED technology. It produces bright, sharp, and highly detailed images with strong contrast, so movies, sports, and games look clear and immersive on the 65-inch screen. Neo QLED technology uses Quantum Mini LEDs to improve brightness control and contrast accuracy. As a result, dark scenes appear deeper while bright scenes stay vivid and balanced. This creates a more realistic picture across different types of content. Vision AI enhances picture and sound in real time. It analyzes each scene and automatically adjusts brightness, sharpness, and color. Therefore, the TV consistently delivers optimized visuals without manual settings. In addition, AI upscaling improves lower-resolution content closer to 4K quality for better clarity and detail. HDR support expands brightness range and color depth, making visuals more dynamic and lifelike. Fast motion handling also improves clarity, which enhances sports and action viewing. The Smart TV platform provides easy access to streaming apps, gaming features, and smart home controls. It runs smoothly and responds quickly when switching between apps. In addition, the slim design with thin bezels gives the Samsung 65 Neo QLED QN70F 4K Vision AI Smart TV QA65QN70FAUXTW a modern and premium appearance. Overall, this Samsung Neo QLED TV combines strong brightness performance, AI optimization, and smart connectivity for a powerful entertainment experience. Specifications: Neo QLED technology delivers bright, sharp, and detailed visuals 65-inch 4K display provides immersive viewing experience Vision AI enhances picture and sound automatically in real time HDR improves contrast, brightness, and color depth Smart TV platform supports apps, streaming, and smart features
AOC Q27G4F 27-inch QHD 180Hz gaming monitor delivers sharp visuals and fast performance for competitive gaming. It is designed for users who want higher resolution with smooth gameplay. Additionally, it features a 27-inch Fast IPS panel with QHD resolution (2560 × 1440). This panel provides clear detail and accurate colors, so it improves both gaming and content viewing. Moreover, the monitor supports a 180Hz refresh rate with 0.5ms MPRT response time. As a result, it ensures smooth motion and reduced blur during fast-paced gameplay. The display includes Adaptive Sync and G-SYNC compatibility. Therefore, it reduces screen tearing and stuttering for stable and responsive performance. In addition, it supports HDR10 and wide color gamut coverage. This improves color depth and image quality for games and media. Furthermore, the monitor includes a fully adjustable stand. It supports height, tilt, swivel, and pivot adjustments, so it improves comfort during long sessions. The design also includes HDMI 2.0 and DisplayPort 1.4 connectivity with a frameless layout for modern setups. AOC Q27G4F 27-inch QHD 180Hz gaming monitor provides a strong balance of resolution, speed, and ergonomic flexibility for gaming and daily use. Specifications: 27-inch Fast IPS panel with 2560 × 1440 QHD resolution 180Hz refresh rate for smooth gaming performance 0.5ms MPRT response time for reduced motion blur Adaptive Sync and G-SYNC compatible support HDR10 with wide color gamut for improved visuals
Looking for a high-quality monitor to elevate your viewing experience? Meet the BenQ EW3270U 32″ 4K HDR Monitor. With its impressive 4K resolution, every detail comes to life with stunning clarity. Firstly, let’s talk about the brilliance of HDR technology. Experience richer colors and deeper contrasts that make images and videos pop off the screen. Whether you’re watching movies, gaming, or editing photos, HDR brings content to life like never before. Moreover, the spacious 32-inch screen provides ample space for multitasking and immersive entertainment. Whether you’re working on spreadsheets or enjoying your favorite games, you’ll appreciate the expansive display and crisp visuals. Additionally, the BenQ EW3270U offers advanced eye care features to reduce eye strain during long hours of use. With flicker-free technology and low blue light modes, you can enjoy extended viewing sessions comfortably. Furthermore, connectivity options abound with multiple ports, including HDMI, DisplayPort, and USB-C. Easily connect your devices and enjoy seamless integration with laptops, desktops, gaming consoles, and more. In conclusion, the BenQ EW3270U 32″ 4K HDR Monitor is the perfect choice for those seeking superior visual quality and immersive viewing experiences. Whether you’re a professional creator or a casual user, this monitor delivers unmatched performance and versatility. Upgrade your setup today and see the difference for yourself. Specifications: Display : 31.5″ VA HDR 10 Resolution : 4K UHD Refresh Rate : 60Hz Response Rate : 4 ms Built-in Speaker : 2Wx2
Are you seeking a more immersive and intuitive computing experience? Look no further than the ViewSonic 22” IR Touch Monitor. This cutting-edge display redefines interaction with its seamless touch functionality. Let’s start with responsiveness. The IR touch technology ensures swift and accurate touch responses, making navigation a breeze. Whether you’re scrolling through documents or playing interactive games, every touch is effortlessly detected. Additionally, the monitor’s sleek design and compact size make it perfect for any workspace. Its slim bezel and adjustable stand provide versatility, allowing you to customize your viewing angle for maximum comfort. Transitioning to visuals, prepare to be captivated by vibrant colors and sharp details. The Full HD resolution delivers crisp images, whether you’re watching movies, browsing photos, or working on creative projects. Furthermore, the monitor’s anti-glare coating reduces reflections, ensuring clear visibility even in brightly lit environments. Say goodbye to distracting glare and hello to uninterrupted viewing pleasure. Moreover, connectivity options such as HDMI and VGA ensure compatibility with a wide range of devices, from laptops to gaming consoles. Seamlessly switch between tasks or devices with ease, enhancing productivity and convenience. In conclusion, the ViewSonic 22” IR Touch Monitor offers an unparalleled touch experience. With its responsive touch technology, stunning visuals, and versatile design, it’s the perfect addition to any home or office setup. Upgrade your interaction today and discover a new level of computing convenience. Specifications: Display : 22″ Panel Type : TN Resolution : 1920×1080 FHD Response Time : 5ms Refresh Rate : 75Hz
Samsung Odyssey OLED G5 G50SF 180Hz Monitor delivers sharp visuals and smooth gameplay for demanding players. It features a 27-inch QHD display with OLED technology. As a result, colors appear vibrant and contrast looks deep and realistic. Moreover, the QD-OLED panel enhances brightness and color accuracy. It supports a wide color range and Pantone validation for precise tones. In addition, HDR10 improves contrast and highlights for a more immersive experience. Furthermore, the 180Hz refresh rate and 0.03ms response time ensure fast and fluid motion. This helps reduce blur and improve reaction speed during gameplay. NVIDIA G-Sync compatibility and AMD FreeSync also reduce tearing and stutter. Finally, Samsung Odyssey OLED G5 G50SF 180Hz Monitor includes gaming tools like Black Equalizer and Virtual Aim Point. These features improve visibility and accuracy. Therefore, players gain better control in every match. Specifications: 27-inch QHD (2560×1440) OLED display with vibrant colors and deep contrast 180Hz refresh rate with ultra-fast 0.03ms response time for smooth gameplay HDR10 support for improved brightness, contrast, and image depth NVIDIA G-Sync Compatible and AMD FreeSync for tear-free gaming Gaming features including Black Equalizer and Virtual Aim Point for better visibility
AOC 27G50Z 27-inch 260Hz gaming monitor delivers ultra-fast performance for competitive esports gaming. It focuses on extreme refresh rate, ultra-low response time, and precise motion clarity for high-level gameplay. Additionally, it features a 27-inch Fast IPS panel with Full HD resolution (1920 × 1080). This panel provides sharp visuals and accurate colors, so it ensures consistent performance during intense gaming sessions. Moreover, it supports up to a 260Hz refresh rate (overclocked, 240Hz native). As a result, it delivers extremely smooth motion and maximizes high FPS gameplay performance. The monitor includes 1ms GtG and 0.3ms MPRT response time. Therefore, it reduces motion blur and ghosting for clearer fast-action visuals. In addition, it supports Adaptive Sync technology and low input lag mode. This reduces screen tearing and ensures precise, responsive gameplay. Furthermore, it supports HDR10 and gaming features like Shadow Control and Game Mode presets. These features improve contrast, visibility, and in-game performance tuning. The monitor also includes HDMI 2.0 and DisplayPort 1.4 connectivity with a frameless esports design. It supports modern gaming setups with clean and simple installation. AOC 27G50Z 27-inch 260Hz gaming monitor provides top-tier speed, ultra-smooth visuals, and competitive features for serious gamers. Specifications: 27-inch Fast IPS panel with Full HD 1920 × 1080 resolution 260Hz refresh rate (240Hz native, overclocked) 0.3ms MPRT and 1ms GtG response time Adaptive Sync with low input lag mode HDR10 with gaming presets and image controls
The Samsung Smart Monitor M7 LS43DM702UMXUE features a 43-inch VA panel with 4K UHD resolution (3840 × 2160). It combines a monitor and smart TV platform in a single display, making it suitable for productivity, entertainment, and streaming without requiring a connected PC. The display supports a maximum refresh rate of 60Hz and provides sharp image quality for office work, media consumption, and general computing tasks. In addition, the 4K resolution offers four times the detail of Full HD content. Samsung equips this model with Tizen OS. Therefore, users can access streaming applications, web services, and smart features directly from the monitor. It also supports Samsung TV Plus and cloud-based productivity applications. Connectivity includes HDMI ports, USB ports, Wi-Fi 5, Bluetooth 5.2, and USB-C. The USB-C connection supports display input, data transfer, and up to 65W power delivery for compatible devices. The monitor includes built-in speakers and supports wireless screen mirroring from compatible smartphones, tablets, and laptops. As a result, users can share content without additional cables. This model focuses on productivity, entertainment, and smart connectivity while providing a large 43-inch 4K display. Specifications: 43-inch VA panel with 3840 × 2160 4K UHD resolution 60Hz refresh rate Tizen OS with built-in streaming applications USB-C with up to 65W Power Delivery Wi-Fi 5, Bluetooth 5.2, HDMI, and USB connectivity
Barcode Reader Wireless 2D S20W Wireless 2D Barcode Scanner | S20-W Name: Wireless 2D Barcode Scanner Model: S20-W Interface: USB Color: Black
Professional Lavalier Microphone Candc DC-C6 Professional Lavalier Microphone Candc DC-C6 Candc DC-C6 Lavalier Microphone for Smartphones, DSLR, Camcorders, Audio recorders, PC etc. Clip microphone to help you get music or sound.One-directional microphone with anti-noise function. type jack can be connected to PC / laptop / wireless microphone transmitter with 3.5mm line-in / mic in. Built-in clip can be easily attached to collar, tie or other clothes-no installation required. Features: Type: microphone Cable length: about 116 cm Sensitivity: -46 ± 2db : one way Operating voltage: DC1.0V-10 VAcurrent consumption
The TP-Link TL-WA855RE N300 Universal Range Extender boosts your existing 2.4GHz Wi-Fi signal up to 300Mbps to eliminate dead zones and extend coverage. With a compact wall-plug design, dual external antennas, and one-touch WPS setup, it’s perfect for home and office use. The TP-Link TL-WA855RE N300 Universal Wireless Range Extender is an easy and affordable solution to extend your Wi-Fi coverage into areas where your router signal is weak or unavailable. It works with almost any wireless router to repeat and strengthen your existing network, providing improved connectivity for streaming, browsing, video calls, and everyday online tasks. Featuring two external antennas for better signal strength, an Ethernet port for wired devices, and a smart signal indicator for optimal placement, it ensures stable coverage across your space. N300 Wi-Fi Speed (Up to 300Mbps) on 2.4GHz Universal Compatibility works with most Wi-Fi routers and access points Boosts Coverage & Removes Dead Zones for stronger wireless signal Two External Antennas improve range and stability One-Touch WPS Setup for quick and simple connection Smart Signal Indicator helps you find the best placement Ethernet Port for wired connection to TVs, PCs, or consoles Compact Wall Plug Design ideal for home or office use Ideal for homes, offices, apartments, and small businesses needing better Wi-Fi coverage. Works with laptops, smartphones, smart TVs, tablets, IP cameras, and other Wi-Fi devices.
Acer V247YBIV 24 inch Monitor SIZE 1920 x 1080 BRAND Acer DIMENSION 24″ SPEED 4ms MISC Wide 3 Years Warranty
Genuine-spec Touch Bar assembly with integrated flex cable for 2020 MacBook Pro 13″ models (A2251, A2289, A2338)—restores full Touch ID and Touch Bar functionality with OEM-level fit and performance. Compatible With: MacBook Pro 13″ (2020): A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) MacBook Pro 13″ (2020): A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) A2251 (Intel Core i5/i7, two Thunderbolt ports) A2289 (Intel Core i5/i7, four Thunderbolt ports) A2338 (Apple M1 chip, two Thunderbolt ports) Includes: Complete Touch Bar module with integrated flex cable, Touch ID sensor, and ambient light sensor—ready for direct connection to the logic board. Functionality: Fully restores dynamic Touch Bar controls, system functions, app shortcuts, and Touch ID (fingerprint authentication and power button). OEM-Quality Build: Matches Apple’s original design in responsiveness, finish, and sensor alignment—ensures seamless integration with macOS. Color Options: Available in Space Gray and Silver to match your MacBook’s top case (confirm your model’s color before ordering). Installation Note: Requires full top case disassembly and careful handling of adhesive and connectors. The flex cable routes under the speakers and connects near the logic board—precision is essential. Recommended for experienced technicians.
The Philips 27″ 100Hz LCD Monitor is the perfect choice for work, entertainment, and gaming. It delivers smooth visuals with a high refresh rate, ensuring a seamless viewing experience. With a 100Hz refresh rate, this monitor provides fluid motion, reducing screen tearing and stuttering. Whether you’re watching videos or playing games, you can enjoy clear and sharp visuals. The Full HD resolution ensures crisp details and vibrant colors for an immersive experience. The Philips 27″ 100Hz LCD Monitor features an ultra-slim design that enhances your workspace. Its narrow bezels provide a sleek, modern look, making it perfect for multi-monitor setups. The adjustable stand allows you to find the most comfortable viewing position. Setting up this monitor is easy with multiple connectivity options, including HDMI and VGA ports. It’s compatible with laptops, desktops, and gaming consoles, offering flexibility for different devices. Eye strain is reduced thanks to Philips’ Flicker-Free technology and LowBlue Mode. These features provide a more comfortable viewing experience, especially during long hours of use. Whether you’re working or gaming, your eyes will feel less fatigued. Energy efficiency is another key benefit of the Philips 27″ LCD Monitor. It consumes less power while delivering high performance, making it an eco-friendly choice for your home or office. Upgrade your display today and enjoy smoother visuals, vibrant colors, and ergonomic comfort. The Philips 27″ 100Hz LCD Monitor is a great addition to any setup. Specifications: Display : 27″ VA Resolution : 1920 x 1080 FHD Refresh Rate : 100Hz Response Rate : 4ms
The S3 2-in-1 Bluetooth Headset and Speaker is a versatile audio device that seamlessly transitions between personal listening and shared sound experiences. Designed for both convenience and high-quality audio performance, it caters to diverse user needs. Key Features: Dual Functionality: Operate as traditional over-ear headphones for private listening or twist the earcups outward to activate the external speaker mode, allowing you to share music with others. Superior Sound Quality: Equipped with advanced audio technology, the S3 delivers crisp and clear sound in both headphone and speaker modes, ensuring an immersive listening experience. Active Noise Cancellation (ANC): Reduces ambient noise, enabling users to enjoy music without external interruptions. Comfortable Design: Features extra-padded ear cushions and an adjustable headband, providing long-lasting comfort for extended use. Foldable and Portable: The foldable design makes it easy to carry, making it an ideal companion for travel and daily commutes. Multiple Playback Options: Supports Bluetooth 5.0 for wireless streaming, NFC for quick pairing, TF card slot for direct music playback, and FM radio functionality, offering a variety of listening choices. Long Battery Life: Built-in 600mAh rechargeable battery provides up to 14 hours of playback in headphone mode and 6.5 hours in speaker mode, ensuring uninterrupted entertainment. Integrated Controls and Microphone: Built-in controls allow for easy navigation between tracks, volume adjustment, and call management. The integrated microphone ensures clear hands-free communication.
The MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor delivers smooth and immersive visuals for gaming, movies, and everyday use. Its Full HD resolution shows clean details in games, videos, and work tasks. The 24-inch curved screen wraps slightly around your view for deeper immersion. This helps you stay focused and engaged while playing or working. Moreover, the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor features a fast 180 Hz refresh rate. This refresh rate makes motion look fluid and responsive. Fast games and action scenes appear more detailed and smooth. This reduces motion blur and improves your reaction time during gameplay. In addition, the monitor offers a 1 ms (MPRT) response time. This helps reduce ghosting and keeps fast visuals clear. Your controls feel responsive and snappy. This makes it easier to compete in shooters and other fast-paced games. Furthermore, the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor uses a VA panel with deep contrast. Blacks appear darker and scenes look richer for games and movies. The panel also supports a wide color gamut for decent color reproduction. This improves visuals for media, gaming, and creative content. Also, the monitor supports adaptive sync technology. This sync helps prevent screen tearing and stuttering when your GPU’s frame rate changes. The curved screen and smooth frame rate combine to deliver a more immersive gaming experience. The design of the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor is clean with slim bezels. It fits well on most desks without taking too much space. The stand allows tilt adjustment so you can set a comfortable viewing angle. Overall, the MSI MAG 244C 24″ FHD 180Hz Curved Gaming Monitor blends speed, clarity, and immersion in one strong display. It improves gaming performance, enhances media enjoyment, and works well for everyday computing. This monitor is ideal for gamers and users who want responsive, smooth visuals without a large screen footprint. Specifications: Display : 24″ VA Resolution : FHD 1920×1080 Refresh Rate : 180Hz Response Time : 1ms Curvature : 1500R
256GB SSD Apple Macbook Pro Air 2013 2014 2015 A1502 A1398 A1466 A1465 | Samsung MZ-JPU512T/A06 | 655-1805D ORIGINAL APPLE PART (Apple sources their SSD’s for MacBooks from Samsung) A1502 – A1398 – A1465 – A1466 100% TESTED WORKING Please check compatibility below before you make your purchase: COMPATIBILITY: MacBook Pro Retina Late 2013 – Mid-2015 MacBookPro11,1 (A1502) – ME864LL/A, ME866LL/A, ME867LL/A, MGX72LL/A, MGX92LL/A, & MGXD2LL/A MacBookPro11,2 (A1398) – ME293LL/A & MGXA2LL/A MacBookPro11,3 (A1398) – ME294LL/A, ME874LL/A, MGXC2LL/A, & MGXG2LL/A MacBookPro11,4 (A1398) – MJLQ2LL/A MacBookPro11,5 (A1398) – MJLT2LL/A & MJLU2LL/A MacBookPro12,1 (A1502) – MF839LL/A, MF841LL/A, & MF843LL/A MacBook Air Mid-2013 – Late 2015 MacBookAir6,1 (A1465) – MD711LL/A, MD760LL/A, MD711LL/B, & MF067LL/A MacBookAir6,2 (A1466) – MD760LL/A, MD760LL/B, & MF068LL/A MacBookAir7,1 (A1465) – MJMVM2LL/A MacBookAir7,2 (A1466) – MJVE2LL/A Model Identifier: Samsung Manufacturer Part# MZ-JPU512T/A06
Genuine-spec battery flex cable for MacBook Pro models A2159 (16", 2019), A1708 (13", 2016–2017), and A2338 (13", 2020 M1)—restores critical communication between the battery and logic board for proper power-on, charging, and macOS battery status. Genuine-spec battery flex cable for MacBook Pro models A2159 (16″, 2019), A1708 (13″, 2016–2017), and A2338 (13″, 2020 M1)—restores critical communication between the battery and logic board for proper power-on, charging, and macOS battery status. Carries SMBus (System Management Bus) signals from the battery to the logic board Enables: Accurate battery percentage and health reporting in macOS Proper charging control (start/stop, thermal throttling) Power-on capability (MacBooks will not boot without this connection) Prevention of “Battery Not Charging” or “Service Battery” errors Accurate battery percentage and health reporting in macOS Proper charging control (start/stop, thermal throttling) Power-on capability (MacBooks will not boot without this connection) Prevention of “Battery Not Charging” or “Service Battery” errors MacBook won’t turn on (even with a good battery) Battery shows “–%”, 0%, or “Not Charging” Random shutdowns under load macOS displays “No Battery Available” Logic board powers fans or lights but no display output Battery flex cable only (with OEM-style connector and strain relief) ❌ Does not include: battery, logic board, or trackpad Requires full bottom case removal and battery disconnection Connects via a ZIF or press-fit socket on the logic board Must be routed precisely to avoid tension or micro-tears Highly recommended for experienced or certified technicians—improper installation can cause permanent power or battery communication failure
