BATTERY ACER AS16A5K AS16A8K Battery for Acer Aspire E5-523 E5-553 E5-576 E5-774G N16Q2 E5-576G E5-575G E5-475 F5-573 E5-575-52JF E5-575-33BM E5-575G-76YK E5-575-54SM E5-575G-57D4 E5-576-392H E5-575-54E8 4ICR19/66 About this item 【Battery type】 Voltage:14.8V; Capacity: 2200mAh /33Wh Color:black 【Note】It is not compatible with E5-575G-53VG, E5-575G-549D,E5-575G-5341,E5-575G-33BM, E5-575G-51VI. Before placing an order, please ensure your old battery’s model is AS16A5K， KAS16A7K， and AS16A8K (14.8V 4-cell). Please do not order this battery if your old battery’s model is s AS16B5J or AS16B8J (10.95V /11.1V 6-cell). They can not replace each other 【Compatible 】Laptop Models for Acer Aspire E15 E5-475 E5-475G E5-523 E5-523G E5-553 E5-553G E5-575 E5-575G E5-575T E5-575TG E5-576 E5-576G E5-774 E5-774G F5-573 F5-573G F5-573T F5-771 F5-771G Series E5-575-52IF E5-575-53EJ E5-575G-59EE E5-575G-53VG E5-575G-57KJ E5-575-74RC E5-575-72N3 E5-575G-52RJ E576G-5762 E5-575G-53VG E5-575G-549D E5-575G-5341 E5-575G-33BM E5-575G-51VI E5-575G-59EE E5-575G-59GV E5-575G-765N E5-575G-76YK 【Compatible Part Number】AS16A5K AS16A7K AS16A8K 4ICR19/66 N16Q1 N16Q2 KT.00605.002 KT.00405.001 KT.00407.004 KT.0040G.007 【Security】All our products are Certified by CE, and FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety.
Are you ready to take your gaming to the next level? Dive into the realm of ViewSonic VX2758A-2K-PRO-2 gaming monitors, where affordability meets exceptional performance for an unmatched gaming experience. Firstly, enjoy crystal-clear visuals with ViewSonic’s high-resolution displays. Immerse yourself in the action with vibrant colors and sharp images, providing a gaming experience like never before. Transition smoothly between scenes with ViewSonic’s quick response times. Say goodbye to lag and motion blur, ensuring you stay ahead in the game and never miss a critical moment. Explore a range of sizes to suit your gaming setup. From compact options for cozy spaces to larger displays for a cinematic experience, ViewSonic has a gaming monitor to fit your preferences. Achieve optimal comfort with customizable settings. ViewSonic VX2758A-2K-PRO-2 gaming monitors offer adjustable brightness, contrast, and color settings, allowing you to tailor the display to your liking and reduce eye strain during extended gaming sessions. In conclusion, elevate your gaming setup without breaking the bank. ViewSonic VX2758A-2K-PRO-2 gaming monitors provide the perfect blend of affordability and top-notch performance, delivering a visually stunning and responsive gaming journey. Level up your gaming experience with ViewSonic today! Specifications: Resolution : 2K QHD Display : 27″ IPS Refresh Rate : 170Hz Response Time : 1ms
LG 32UN880-B 32 Inch UltraFine™ Display Ergo 4K HDR10 Monitor PICTURE QUALITY Screen Size 31.5″ Display Type IPS Response Time 5ms (GTG) Refresh Rate 60Hz Color Gamut (Typ.) DCI-P3 95% (CIE1976) Color Depth (Number of Colors) 1.07B Pixel Pitch (mm) 0.18159 x 0.18159 mm Aspect Ratio 16:9 Resolution 3840 x 2160 Brightness 350nits (typ) Contrast Ratio 1000:1 Viewing Angle 178º (R/L), 178º (U/D) Surface Treatment Anti-Glare INPUT/OUTPUT HDMI Yes x 2 DisplayPort Yes x 1 USB Type-C Yes Headphone Out Yes USB Down-stream Yes x 2 USB-C (DP Alternate Mode) Yes USB-C (Data Transmission) Yes POWER Type Adapter Input 100-240 Vac, 50/60 Hz Power Save/Sleep Mode (Max) 0.5W DC Off (Max) Less than 0.3W Power Consumption (Typ.) 160W Power Consumption (Max.) 55W Specifications: LG 32UN880-B 32 Inch UltraFine™ Display Ergo 4K HDR10 Monitor PICTURE QUALITY Screen Size 31.5″ Display Type IPS Response Time 5ms (GTG) Refresh Rate 60Hz Color Gamut (Typ.) DCI-P3 95% (CIE1976) Color Depth (Number of Colors) 1.07B Pixel Pitch (mm) 0.18159 x 0.18159 mm 1 Year Warranty
The MSI MAG 274QF X24 monitor delivers sharp 27″ WQHD visuals with a high 240Hz refresh rate for smooth motion. It offers responsive gameplay and fast action performance. Its Rapid IPS panel provides vivid colors and wide viewing angles, ensuring consistent image quality from many positions. The monitor supports AMD FreeSync Premium to help reduce screen tearing and stuttering. This contributes to a fluid gaming experience. It also includes HDR Ready support to enhance contrast and display detail in bright and dark areas. The sleek flat design with anti-glare surface supports long sessions with less eye strain. The MSI MAG 274QF X24 monitor is a strong choice for gamers who want fast refresh performance and sharp 2K visuals. Specifications: 27″ WQHD (2560×1440) Rapid IPS panel with vivid colors 240Hz refresh rate for ultra-smooth motion 0.5ms (GtG) response time for fast responsiveness AMD FreeSync Premium to reduce screen tearing HDR Ready support for enhanced contrast and detail
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 Alienware AW2524HF 24.5″ 500Hz Gaming Monitor is built for pro gamers who want unmatched speed and clarity. It features a 24.5-inch Full HD display with a Fast IPS panel for accurate colors and wide viewing angles. This monitor offers a blazing 500Hz refresh rate through DisplayPort when overclocked, and up to 240Hz via HDMI, making gameplay ultra-smooth. A 0.5ms response time helps reduce motion blur, so every frame stays sharp and clean. It supports NVIDIA G-SYNC, giving you tear-free and fluid motion across demanding games. You also get support for HDR10 and 99% sRGB color coverage, bringing vivid visuals to every scene. Connectivity options are flexible, including two HDMI 2.0 ports, one DisplayPort 1.4, four USB 3.2 Gen 1 ports, and one USB upstream port. There’s also a built-in USB hub for quick accessory access. The stand is fully adjustable with tilt, swivel, pivot, and height settings, making long sessions more comfortable. You can also use VESA mounting for a custom setup. Extra features like AlienFX lighting and NVIDIA Reflex Latency Analyzer add depth to your gaming experience. These tools help improve reaction time and personalize your setup. Overall, the Alienware AW2524HF delivers unmatched refresh speed, quick response, and stunning visuals. It’s perfect for competitive gamers who want every possible advantage. Specifications: Display : 24.5″ IPS Resolution : FHD 1920 x 1080 Refresh Rate : 500Hz Response Time : 0.5ms
Acer Nitro QG241YBII 23.6 Inch Gaming Monitor LED Full Hd Screen Size 23.8 Inches Display Resolution Maximum 1920×1080 Brand Acer Special Feature Full HD Refresh Rate 75 Hz Specifications: Acer Nitro QG241YBII 23.6 Inch Gaming Monitor LED Full Hd Screen Size 23.8 Inches Display Resolution Maximum 1920×1080 Brand Acer Special Feature Full HD Refresh Rate 75 Hz
The Samsung 55″ OLED 4K S85F Vision AI Smart TV QA55S85FAEXTW delivers a premium home entertainment experience built on advanced OLED technology. It produces deep blacks, rich colors, and strong contrast, so movies, sports, and games look more realistic and immersive on the 55-inch screen. OLED technology controls each pixel individually, so every detail appears with high precision. This improves dark scenes by keeping blacks deep and detailed, while bright areas stay clean and accurate. As a result, the picture remains balanced in both bright and dark environments. Samsung Vision AI improves picture and sound in real time. It analyzes each scene and adjusts brightness, color, and sharpness automatically. Therefore, the Samsung 55 OLED S85F Vision AI Smart TV QA55S85FAEXTW always delivers optimized visuals without manual settings. In addition, AI upscaling improves lower-resolution content closer to 4K quality for better clarity and detail. HDR expands contrast and color depth, making visuals more lifelike and dynamic. Fast motion also appears smoother and clearer, which improves sports and action viewing. The Smart TV system gives access to streaming apps, games, and smart home features. It runs smoothly and is easy to navigate. In addition, the slim design with thin bezels gives the Samsung 55 OLED S85F Vision AI Smart TV QA55S85FAEXTW a modern and premium look. Overall, this Samsung OLED TV combines strong picture quality, AI optimization, and smart connectivity for a high-end viewing experience. Specifications: OLED display delivers deep blacks and strong contrast 55-inch 4K screen provides immersive viewing experience Vision AI optimizes picture and sound automatically HDR improves brightness, contrast, and color depth Smart TV system supports apps, streaming, and smart features
7CJRC Laptop Battery for Dell Latitude 7470 7270 E7270 E7470 Series 21X15 021X15 KNM09 0KNM09 TX283 0TX283 451-BBSW 451-BBWR 11.4V 42Wh 3-Cell About this item Battery type: Li-ion; Voltage: 11.4V; Capacity: 42Wh; Cells: 3-cell Compatible Models: Fit for Dell Latitude 7470 7270 E7470 E7270 Series Replace Part Numbers: 7CJRC KNM09 0KNM09 21X15 021X15 TX283 0TX283 451-BBSW 451-BBWR V6VMN 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. The actual operation time will depend on how much electricity is required by the device and how you use it
Apple Magic Mouse: Wireless, Bluetooth, Rechargeable. Works with Mac or iPad; Multi-Touch Surface - White (Pre-Owned) Apple Magic Mouse: Wireless, Bluetooth, Rechargeable. Works with Mac or iPad; Multi-Touch Surface – White (Pre-Owned) About this item WIRELESS, RECHARGEABLE CONVENIENCE — Magic Mouse connects wirelessly to your device via Bluetooth. And the rechargeable internal battery means no loose batteries to replace. WORKS WITH MAC OR IPAD — It’s ready to go right out of the box and pairs quickly with your Mac or iPad so you can get to work right away. SWIPE AND SCROLL ON THE MULTI-TOUCH SURFACE — The Multi-Touch surface allows you to perform simple gestures such as swiping and scrolling. And an optimized foot design lets Magic Mouse glide smoothly across your desk. GO WEEKS WITHOUT CHARGING — The incredibly long-lasting internal battery will power your Magic Mouse for about a month or more between charges. Comes with a woven USB-C to Lightning Cable that lets you pair and charge by connecting to a USB-C port on your Mac or iPad. SYSTEM REQUIREMENTS — Requires a Bluetooth-enabled Mac with OS X 10.11 or later or an iPad with iPadOS 13.4 or later.
BenQ RE8604 86” 4K UHD Interactive Flat Panel is a large interactive display designed for classrooms, meeting rooms, and training environments. It supports touch interaction, built-in Android system, and 4K resolution for collaboration and presentations. It features an 86-inch IPS panel with 3840 × 2160 4K UHD resolution. Therefore, it delivers sharp visuals and wide viewing angles for group use. In addition, it supports up to 40-point multi-touch input for writing and collaboration. Moreover, it runs an Android-based system (EDLA-supported depending on configuration). As a result, users can open apps, use whiteboard tools, and present content directly on the display without an external PC. The display includes anti-glare glass. Therefore, it remains readable in bright environments. In addition, it supports 4K 60Hz output for smooth visuals during presentations and video playback. Furthermore, it includes HDMI, USB, USB-C, LAN, and OPS slot connectivity. As a result, it works with laptops, external PCs, and modular computing systems. It also includes built-in speakers for classroom and meeting audio. Therefore, it supports presentations without extra sound systems. Finally, the BenQ RE8604 delivers a large 4K interactive workspace with multi-touch control and flexible connectivity for education and business use. Specifications: Display: 86-inch IPS panel with 3840×2160 4K UHD resolution Touch: Up to 40-point multi-touch support for collaboration System: Android-based interactive platform (EDLA support depending on model) Connectivity: HDMI, USB, USB-C, LAN, and OPS slot Display: Anti-glare screen with 4K 60Hz smooth output
The AOPEN 32HC5QR 31.5″ FHD 165Hz Curved Gaming Monitor wraps your view with a wide curved screen. It gives immersive visuals for gaming, work, or movies. The Full HD resolution produces clear, sharp images. The 31.5‑inch size provides plenty of screen space for multitasking or play. Moreover, the AOPEN 32HC5QR offers a high 165 Hz refresh rate that delivers very smooth motion. Fast action scenes appear fluid and crisp. The VA panel gives deep contrast and rich blacks for vibrant visuals. This enhancement adds depth to games and movies. In addition, the monitor uses adaptive sync (AMD FreeSync Premium) to match frame rate and screen refresh. This avoids screen tearing and stutter during gameplay. You get stable and consistent frame delivery even in intense gaming. Also, the curved 1500R / 1800R screen design helps immerse you deeper into action. It reduces eye‑strain by keeping all parts of the display at a comfortable viewing distance. The AOPEN 32HC5QR includes useful eye‑care features. It has Flicker‑Free and BlueLightShield technologies to reduce screen flicker and filter blue light. This helps protect your eyes during extended use. It also supports HDMI and DisplayPort connectivity for easy setup with laptops, PCs, or consoles. The monitor includes a slim bezel design for a clean modern look. It has a tilt‑adjustable stand and works with VESA mounts for flexible placement. The build feels solid and reliable for everyday use. Overall, the AOPEN 32HC5QR 31.5″ FHD 165Hz Curved Gaming Monitor combines immersive curved display, smooth refresh rate, strong contrast, and eye‑friendly design. It improves gaming, work, and entertainment experiences. It is ideal for gamers, content viewers, and everyday users who want a large, smooth, and comfortable display. Specifications: Display : 31.5 VA Resolution : FHD 1920×1080 Refresh Rate : 165Hz Response Time : 1ms Curvature : 1800R
BenQ RE6504 65” 4K UHD Interactive Flat Panel with Android 13 is a large interactive display designed for classrooms, meeting rooms, and training environments. It combines a 4K touchscreen, built-in Android system, and collaboration tools for interactive presentations. It features a 65-inch IPS panel with 3840 × 2160 (4K UHD) resolution. Therefore, it delivers sharp visuals and wide viewing angles for group interaction. In addition, it supports up to 40-point touch input for multi-user collaboration and writing. Moreover, the panel runs Android (EDLA certified, Android 14/13 depending on region) with built-in apps and Google services support. As a result, users can install apps, browse content, and run teaching or presentation tools directly on the display without an external PC. The RE6504 uses precision IR touch technology. Therefore, it provides fast and accurate writing with low delay. In addition, it includes anti-glare and tempered 9H glass for durability and better visibility in bright rooms. Furthermore, it includes multiple connectivity options such as HDMI, USB, USB-C, OPS slot, and LAN. As a result, it supports laptops, media players, and modular PC systems for flexible installation. It also includes built-in speakers and collaboration software tools. Therefore, it supports presentations, whiteboarding, screen sharing, and remote teaching or meeting scenarios. Finally, the BenQ RE6504 delivers a large 4K interactive workspace with Android integration, multi-touch control, and strong connectivity for education and business use. Specifications: Display: 65-inch IPS panel with 3840×2160 4K UHD resolution Touch: Up to 40-point multi-touch for collaboration System: Built-in Android (EDLA support with Google services) Glass: Anti-glare 9H tempered glass for durability Connectivity: HDMI, USB, USB-C, OPS slot, and LAN support
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
A rugged and versatile pre-owned Lenovo ThinkPad T480 with 14" touchscreen, 8th Gen Core i5, 8GB RAM, and 256GB SSD—ideal for professionals who need durability, security, and touch-enabled productivity.
Genuine-spec keyboard replacement for MacBook Pro 13″ (Model A2251, 2020) — choose US QWERTY or UK QWERTY (with £ symbol). Features Apple’s reliable Magic Keyboard with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: MacBook Pro 13-inch (2020, Two Thunderbolt Ports, Model A2251, Model Identifier MacBookPro16,1) with Intel Core i5/i7 processors. Layout Options (select at purchase): US Layout: Standard QWERTY with wide Enter key, @ above 2, # above 3, and full function row. UK Layout: QWERTY with £ symbol, tall vertical Enter key, @ accessed via right Alt, and UK-specific punctuation. US Layout: Standard QWERTY with wide Enter key, @ above 2, # above 3, and full function row. UK Layout: QWERTY with £ symbol, tall vertical Enter key, @ accessed via right Alt, and UK-specific punctuation. Keyboard Type: Apple’s Magic Keyboard with scissor-switch mechanism—offering improved durability, quieter typing, and 1mm key travel compared to Butterfly keyboards. Integrated Features: Full backlit keys for low-light environments Ambient light sensor support OEM-style flex cable pre-attached for direct connection to the logic board Full backlit keys for low-light environments Ambient light sensor support OEM-style flex cable pre-attached for direct connection to the logic board Precision Build: Engineered to match Apple’s exact dimensions, key spacing, and top-case curvature—ensures seamless visual and functional integration. Installation Note: The keyboard is factory-glued into the top case. Replacement requires full disassembly, careful adhesive removal, and professional re-adhesion. Recommended for experienced or certified repair technicians only.
REMAX K10 Ryusic Series Type C One-to-Two Live-Stream Wireless Microphone Lossless Sound Quality: This microphone is equipped with an advanced chip for effective noise reduction, minimizing background noise, and delivering clear, high-fidelity sound. True 2.4GHz Wireless Technology: Operates with a proprietary 2.4GHz transmission protocol that offers stable, real-time audio transmission with ultra-low latency (<20ms), enhancing performance. Long-lasting Battery Life: Powered by an 80mAh polymer battery, the microphone consumes low power and provides up to 6-8 hours of continuous working time. Broad Device Compatibility: Compatible with a variety of devices, including smartphones, tablets, computers, and cameras, offering versatile recording solutions. Portable and Compact Design: Featuring a fingertip-sized form factor, this microphone is designed to be lightweight, compact, and easy to carry, making it ideal for both everyday and professional use. Omnidirectional Pickup: With a 360° omnidirectional microphone pickup, sound is captured evenly from all directions, ensuring comprehensive sound coverage for every recording. Material: ABS Battery Capacity: 80mAh Rated Voltage: 3.7V Charging Time: 1-1.5 hours Charging Port: Type-C Working Time: 6-8 hours Transmission Protocol: 2.4GHz proprietary Latency: Ultra-low latency of <20ms; receiver consumption of <25mA Frequency Response: 20Hz-20kHz Sensitivity: -30dB Signal-to-Noise Ratio: -65dB Transmission Distance: 20 meters Microphone Pickup: 360° omnidirectional
PCE M8-700 UPS (line-interactive) — 700 VA / 360 W backup unit for 220–240 V input. Protects PCs, routers, small electronics from outages and voltage swings. The PCE M8-700 is a line-interactive UPS designed for home or small office use. It provides backup power, voltage regulation (AVR), surge protection, and supports automatic switching during outages. Ideal for desktop PCs, network gear, monitors, or point-of-sale systems. Features & Capabilities Line-interactive topology: regulates input voltage without switching to battery when voltage fluctuates mildly. Automatic Voltage Regulation (AVR) to correct undervolt/overvolt conditions. Simulated (stepped) sine wave output in battery mode. Surge, overload, short circuit, discharge protections built in. Cold start capability (ability to power on from battery with no mains) LED + audible alarms for status (battery mode, overload, fault) USB / RS232 interface in some variants for power management (shutdown, monitoring) Technical Specifications What “Input 220–240 VAC, 50/60 Hz, 3.7 A” Means (and Caveats) If the specification you’re giving is “3.7 A” at input, that corresponds to a maximum input current draw when the UPS is handling a heavy load or during charging cycles. At 230 V × 3.7 A ≈ 850 W of input capacity. The unit’s 360 W output means there’s overhead for losses, inverter inefficiency, battery charging, etc. The UPS must operate within the stated voltage and frequency ranges — if input is too low or too high, it may switch to battery or go into protection mode.
*Additional 8$ Delivery Fee Outside Beirut Due to The Packaging Size Dark Flash RC600 Gaming Armchair ● Armrests passing BIFMA regulations, allowing gamers to adjust accordingly. ● 90-180° back support adjustment, from game training to napping real quick! ● High-density foam inner, enjoy gaming in comfort. ● Steady explosion-proof mechanism base, gaming with ease, and focus on the game. High density and solid structure, stable and comfortable while sitting. Incredibly stable wheelbase, works on any surface. Various sitting positions, for gaming and relaxing. Outstanding surface, durable for everyday use. Specifications: Dark Flash RC600 Gaming Armchair ● Armrests passing BIFMA regulations, allowing gamers to adjust accordingly. ● 90-180° back support adjustment, from game training to napping real quick! ● High-density foam inner, enjoy gaming in comfort. 1 Year Warranty
Genuine-spec UK layout (QWERTY) black keyboard replacement for MacBook Air 13.6″ and 15″ models (2023–2025, M2/M3/M4 chips)—featuring Apple’s Magic Keyboard design with scissor-switch mechanism, backlighting, and precise OEM fit. Compatible With: 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) 13.6″ MacBook Air: A2681 (M2, 2022–2023), A3113 (M3, 2023–2024), A3240 (M4, 2024–2025) 15″ MacBook Air: A2941 (M2, 2023), A3114 (M3, 2023–2024), A3241 (M4, 2024–2025) Keyboard Layout: UK English (QWERTY) with £ symbol, taller Enter key, and standard UK key labeling—matches Apple’s original regional configuration. Design: Apple’s Magic Keyboard with scissor-switch mechanism—offering quiet, responsive typing with 1mm travel and improved reliability. Features: Backlit keys, ambient light sensor support, and original-style flex cable connector for seamless integration with the logic board. Color: Matte black keycaps matching the Space Gray and Midnight MacBook Air finishes (also compatible with Silver/Starlight—keycaps are model-agnostic). Precision Engineering: Manufactured to exact OEM specifications for fit, alignment, and tactile performance—ensures flush mounting within the top case. Installation Note: Keyboard is glued into the top case and requires full disassembly and careful re-adhesion. Recommended for professional technicians only due to complexity and risk of damage.
