Keyboard Compatible for MacBook PRO Retina 15″ A1398 (Late 2013-MID 2015) US Layout Compatibility: MacBook Pro Retina 15″ A1398 Late 2013 (IG): ME293LL/A (2.0 Core i7) Late 2013 (IG): ME293LL/A (2.3 Core i7) Late 2013 (IG): ME293LL/A (2.6 Core i7) Mid 2014 (IG): MGXA2LL/A (2.2 Core i7) Mid 2014 (IG): MGXA2LL/A (2.5 Core i7) Mid 2014 (IG): MGXA2LL/A (2.8 Core i7) Late 2013 (DG): ME294LL/A (2.3 Core i7) Late 2013 (DG): ME294LL/A (2.6 Core i7) Compatibility: Mid 2014 (DG): MGXC2LL/A (2.5 Core i7) Mid 2014 (DG): MGXC2LL/A (2.8 Core i7) Mid 2015 (IG): MJLQ2LL/A (2.2 GHz Core i7) Mid 2015 (IG): MJLQ2LL/A BTO (2.5 GHz Core i7) Mid 2015 (IG): MJLQ2LL/A BTO (2.8 GHz Core i7) Mid 2015 (DG): MJLT2LL/A (2.5 GHz Core i7) Mid 2015 (DG): MJLT2LL/A BTO (2.8 GHz Core i7) Identifying Numbers APN: 661-6532, 661-8311,661-02536 Specification】The keyboard is without frame! pls see detail compatible model in descrirption. 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 biddingReplacement and high quality,Replace your faulty, cracked or broken keyboard Replacement and high quality,Replace your faulty, cracked or broken keyboard Each keyboard is tested before shipping Please contact us if you have any question or problems.
BATTERY ASUS A41-X550E X450 X450e X450j X450jf X550e X550z X550za X750j X750ja X751 X751m A450j A450jf A450e F751la F751ma F751mj R751 R752 F751 K751 P750L P750L Series About this item Gomarty:100% Brand NEW, Battery Type: Li-ion Voltage: 15V Capacity: 2600MAH Cells: 4-cell Color: Black, High-Quality Battery for ASUS; Gomarty has registered a U.S. Trademark and the serial number is 87155272 Battery Models: A41-X550E Laptop Battery for Asus X450 X450E X450J X450JF X751M X751MA-DB01Q X751MA X751L X750JA This laptop Battery works with ASUS D451V D451E K450V K550E K550D K550DP F450 F450C F450V F450E F450J F450JF F751 F751L F751LA F751LAV F751LB F751LD F751LDV F751LJ F751LK F751LN F751LX F751M F751MA F751MD F751MJ A450 A450C A450V A450E A450J A450JF Series 0B110-00220000M. Grade A cells ensure fast charges and low power consumption, while built-in circuit protection ensures safety and stability. Customer Questions: If you have any questions, you can contact us. We will respond within 24 hours.
The Arzopa A1 is an ultra-slim, lightweight 15.6-inch portable monitor engineered for seamless travel productivity and entertainment. Delivering crisp Full HD imagery on a premium IPS panel with integrated eye care features, it provides a hassle-free plug-and-play experience using dual full-function USB-C and Mini HDMI inputs. Complete with a built-in adjustable kickstand, it is the perfect dual-screen companion for laptops, smartphones, and gaming consoles. ✅ Full Specifications: Model: ARZOPA Type-C Portable Monitor (ARZOPA-A1) Interface / Connection: Multi-Port Input Panel: 2 x USB Type-C Full Function Ports (Supports concurrent video transmission, data, and power delivery) 1 x Mini HDMI Port (Video signal input only) 1 x 3.5mm Headphone / Audio Output Interface Interface / Connection: Multi-Port Input Panel: 2 x USB Type-C Full Function Ports (Supports concurrent video transmission, data, and power delivery) 1 x Mini HDMI Port (Video signal input only) 1 x 3.5mm Headphone / Audio Output Interface Performance / Screen Quality: Panel Type: IPS (In-Plane Switching) display with 178° wide viewing angles Resolution: Full HD 1920 x 1080p Refresh Rate: 60Hz Aspect Ratio: 16:9 Brightness: 300 cd/m² Contrast Ratio: 1200:1 Display Colors: 262K (8-bit) Color Gamut: 45% NTSC / 72% sRGB space coverage Performance / Screen Quality: Panel Type: IPS (In-Plane Switching) display with 178° wide viewing angles Resolution: Full HD 1920 x 1080p Refresh Rate: 60Hz Aspect Ratio: 16:9 Brightness: 300 cd/m² Contrast Ratio: 1200:1 Display Colors: 262K (8-bit) Color Gamut: 45% NTSC / 72% sRGB space coverage Display Technology: Features built-in HDR rendering technology to boost dynamic contrast alongside a Low Blue Light comfort filter to reduce eye fatigue. Audio: Dual built-in stereo speakers (1W x 2 configuration). Material & Build: Premium, durable metal housing constructed out of a sleek aluminum alloy framework. Design & Form Factor: Ultra-thin bezel layout boasting an integrated adjustable smart kickstand for multi-angle landscape deployment. Power Setup: Driverless plug-and-play architecture. Operates without an internal battery; runs on host device power distribution via USB-C or requires an external 5V/3A power input adapter. Compatibility: Fully compatible with MacBooks, Windows PCs/Laptops, Chromebooks, USB-C supported Android smartphones, and modern gaming consoles (Nintendo Switch, Xbox Series X/S, PS4, PS5). Dimensions: Approx. 355.6 x 220.9 x 9.14 mm (Ultra-slim 0.36-inch profile) Weight: Approx. 725 to 735 grams (1.6 lbs lightweight chassis)
REMAX RB-950HB Binzchi Series ANC Bluetooth Wireless Headphone – Black Description Advanced Active Noise Cancellation (ANC). 8.0 CVC technology for enhanced audio clarity. Patented ergonomic design. Premium ADi noise reduction chip. Large 40mm diaphragm for rich audio. 6-microphone array for crystal-clear calls. Smart infrared wear detection. Specification Color: Black, Blue, White Rated Power: 10mW Driver Unit: 40mm Driver Impedance: 32 ohm Frequency Response: 20Hz~ 20kHz Wireless Connectivity: Bluetooth® 5.3 Bluetooth Range: 10M Compatible with: iOS / Android Integrated Controls: Volume Up/Down, Play/Pause Microphone: Yes Battery Capacity: 600mAh Playing Time: 30 hrs Charging Time: 2-2.5 hrs Standby time: 40 hrs
Features: Advanced bluetooth Chip (V5.4): Enjoy seamless and robust connectivity with the latest bluetooth 5.4 technology, providing stable and efficient wireless performance. Superior Sound Quality: Experience immersive HiFi audio with powerful bass and clarity, courtesy of dual 52mm drivers paired with a bass diaphragm designed to deliver exceptional sound. Vibrant RGB Light Display: Half of the speaker surface displays dynamic and colorful RGB lights, creating a visually captivating experience that enhances your music enjoyment. Extended Battery Life: Benefits from extensive playtime powered by a 3000mAh battery, with up to 4 hours of continuous playback and an impressive 180 days of standby time. TWS Pairing: Effortlessly pair two speakers to achieve a rich, enveloping stereo sound that transforms any space into a lively audio environment. Multiple Playback Modes: Versatility at its best with multiple playback options, including FM radio, AUX input, TF card, and USB playback, ensuring you have endless ways to enjoy your favorite tunes.
13" Mid-2017 Apple MacBook Pro A1708 Logic Board 16Gb 2.3Ghz i5 13″ Mid-2017 Apple MacBook Pro A1708 Logic Board 16Gb 2.3Ghz i5
Genuine-spec touchpad flex cable for MacBook Pro 13″ (Model A2338, 2020, Apple M1)—essential for restoring full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 13-inch (2020, Model A2338, Model Identifier MacBookPro17,1) with Apple M1 chip (2 Thunderbolt ports). Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits: Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. OEM-Quality Build: Matches Apple’s original specifications in: Cable length and routing Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing Connector pitch and ZIF latch design EMI shielding and flex durability Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only. Important Compatibility Notes: ✅ Only for A2338 (13″, M1, 2020) ❌ Not compatible with: Intel-based A2251 / A2289 (2020) MacBook Air M1 (A2337) Any MacBook Air or 14″/16″ MacBook Pro ✅ Only for A2338 (13″, M1, 2020) ❌ Not compatible with: Intel-based A2251 / A2289 (2020) MacBook Air M1 (A2337) Any MacBook Air or 14″/16″ MacBook Pro Intel-based A2251 / A2289 (2020) MacBook Air M1 (A2337) Any MacBook Air or 14″/16″ MacBook Pro
HP LaserJet M111w Black & White Multifunction Printer, Wireless & Mobile Printing, 600 x 600 dpi Resolution, Print speed up to 20 ppm, 8000-page Monthly Duty Cycle, USB / Wireless Connectivity | 7MD68A White
VI04 V104 Replacement Laptop Battery for HP Envy 14 15 17 Series HP Pavilion 15 17 Notebook Series TPN Q139 Q140 Q141 Q142 Q143 Spare 756743-001 About this item Battery Type: Li-ion; Voltage: 14.8V; Capacity: 2200MAH; Cells:4-cell Replacement Battery for HP Envy 14 15 17 Laptop Series 14-v000-v099 15-k000-k099 17-f000 -f099 m7-k211dx m7-k111dx m7-k211dx 15t-k100 15t-k200 17t-k000; HP Pavilion 15 17 Laptop Series 15-p000 to p099, 15-x000 to x099, 17-f000 to f099, 17-x000 to x099; 14-V006LA 15-P030NR 15-P390NR 15-P099NR 15-P100DX 15-P133CL 15-P114DX 17-F053US 17-F113DX Compatible Models for HP ProBook 440 G2 445 G2 450 G2 455 G2 756743-001 756744-001 756745-001 756479-421 756478-421 756478-422 756478-851 HSTNN-DB6K HSTNN-DB6J HSTNN-LB6K HSTNN-LB6I All products are Certified by CE FCC for safety; Strict guidelines for compatibility, and standards compliance for environmental safety
A1618 Replacement Battery for MacBook Pro 15 Inch Retina A1398 (Early 2015), Laptop A1494 A1618 Replacement Battery Capacity: 8440mAh/95.03Wh 11.26V, Battery Type: Li-Polymer 【Package include: 1pcs – OEM laptop replacement battery for macbook air 13 inch, 2pcs – screwdrivers, 1pcs – Professional installation instructions】 【Operating life and certification】UL-/CE-/FCC-/RoHS-Certified/PSE Report for safety. Cobalt Proportion: >98%. Upgrade chip — Up to 1500+ recharge cycles over the life of the battery, Long operating time after charging full with 8440mAh real high capacity, same with original battery A1494/A1618 【Premium Electric Core】Japan Newest 4.0 upgraded OEM Battery for macbook pro 15 Inch A1398 (Late 2013, Mid 2014, Early 2015). Better circuit board, multiple command chip control, keep the battery stable charge and discharge.Over charger and discharger (short-circuit) protection, ensure fast charges and low power consumption 【Compatibility】 MacBook pro 15” Retina A1398 (Late 2013, Mid 2014, Early 2015) ME293 ME294 MGXA2 MGXC2 MJLQ2 MJLT2 MJLU2. Please check the picture to get more detail
The MOXOM MX-PB168 is a true high-capacity 40000mAh external battery pack designed to provide reliable, multi-day charging for all your devices. Featuring an advanced multi-protocol fast setup with dual built-in cables, a clear LCD digital battery indicator, and a high-intensity integrated flashlight, it is the ultimate heavy-duty solution for outdoor adventures, travel, or emergency home backups. ✅ Full Specifications: Model: MOXOM Ultra-Large Capacity Power Bank (MX-PB168) Interface / Connection: Multi-Port Charging Setup: Input Ports: Type-C and Micro-USB ports (for recharging the power bank) Output Ports: 4 x USB-A Fast Charging ports Built-In Cables: 1 x Type-C Cable & 1 x Lightning (iPhone) Cable attached directly to the frame Interface / Connection: Multi-Port Charging Setup: Input Ports: Type-C and Micro-USB ports (for recharging the power bank) Output Ports: 4 x USB-A Fast Charging ports Built-In Cables: 1 x Type-C Cable & 1 x Lightning (iPhone) Cable attached directly to the frame Performance / Charging Speed: Max output up to 22.5W high-efficiency fast charging Supports Power Delivery (PD 20W) Supports Quick Charge 3.0 (QC3.0) Supports Huawei SuperCharge Protocol (SCP 22.5W) Performance / Charging Speed: Max output up to 22.5W high-efficiency fast charging Supports Power Delivery (PD 20W) Supports Quick Charge 3.0 (QC3.0) Supports Huawei SuperCharge Protocol (SCP 22.5W) Capacity / Battery Variant: 40000mAh (High-density Li-Polymer cells) Material & Build: Fire-retardant, heavy-duty ABS + Polycarbonate matte black casing built to resist everyday scuffs and impacts. Design & Form Factor: Ergonomic block form factor equipped with an integrated high-tensile hanging rope/strap for easier carrying. Security & Smart Features: * Smart MCU management chip protecting devices against over-current, overheating, short circuits, and overcharging Integrated bright LED spotlight/flashlight for nighttime or emergency blackouts Security & Smart Features: * Smart MCU management chip protecting devices against over-current, overheating, short circuits, and overcharging Integrated bright LED spotlight/flashlight for nighttime or emergency blackouts Display: Full front-facing premium LCD digital display showing real-time battery charge percentages and fast-charging status triggers. Compatibility: Universally compatible with Apple iPhones, iPads, Samsung Galaxy series, Huawei, Xiaomi, Oppo, tablets, smartwatches, and low-current wireless earphones. Color: Matte Black
HP 135W Multifunction Laser Print Speed: Fast and efficient printing with 20ppm. Printing Technology: Utilizes laser printing technology for precise and professional-quality documents. Multifunction Capability: All-in-one functionality for printing, scanning, and copying needs. Connectivity Options: Offers both wired and wireless connectivity options for versatile use. Compact Design: Space-saving design ideal for home offices and small workspaces. User-Friendly Interface: Easy-to-use interface for seamless operation. Energy Efficiency: Designed with energy-saving features to promote sustainability. Ideal for Home and Small Offices: Tailored for users seeking a compact and capable solution for their printing needs. Click for more info
OEM-quality trackpad replacement (without flex cable) for MacBook Air 13″ (Model A2179, 2020)—available in Space Gray and Silver finishes—engineered for precise Force Touch performance, smooth multi-touch gestures, and seamless visual integration. Compatible With: MacBook Air 13-inch (2020, Model A2179) with Intel Core i3/i5/i7 processors (non-M1). Part Type: Trackpad only—does not include the flex cable, Taptic Engine, or mounting hardware. Designed for technicians who will reuse the original internal components. Color Options: Space Gray: Matches Space Gray and Midnight finishes Silver: Matches Silver and Starlight finishes (Note: “Z1” typically refers to Apple’s internal regional/part code—this listing covers standard OEM trackpads for A2179.) Space Gray: Matches Space Gray and Midnight finishes Silver: Matches Silver and Starlight finishes (Note: “Z1” typically refers to Apple’s internal regional/part code—this listing covers standard OEM trackpads for A2179.) Force Touch Capable: Fully supports pressure-sensitive input and haptic feedback when paired with the original Taptic Engine and logic board—ensuring full macOS gesture functionality. Precision Build: Mirror-smooth glass surface with exact curvature, texture, and micro-click mechanism matching Apple’s original design for consistent tracking and tactile response. Installation Requirements: Requires full bottom case disassembly and careful transfer of the original flex cable and Taptic Engine. Proper adhesive application is critical for structural integrity and sensor alignment. Recommended for professional or experienced repair technicians only. Important: This is a bare trackpad assembly—not a plug-and-play module. Functionality depends on correct integration with original electronics.
Genuine-spec touchpad flex cable for Apple’s 12-inch MacBook (Model A1534, Early 2015 / Early 2016 / Mid 2017)—essential for restoring full Force Touch trackpad functionality, haptic feedback, and multi-touch gesture support. Compatible With: MacBook 12″ (Early 2015) – 1.1GHz Core M MacBook 12″ (Early 2016) – 1.1GHz/1.3GHz Core M MacBook 12″ (Mid 2017) – 1.2GHz/1.3GHz Core m3/i5/i7 All share Model Number A1534 and Model Identifier MacBook8,1 / MacBook9,1 / MacBook10,1 respectively. MacBook 12″ (Early 2015) – 1.1GHz Core M MacBook 12″ (Early 2016) – 1.1GHz/1.3GHz Core M MacBook 12″ (Mid 2017) – 1.2GHz/1.3GHz Core m3/i5/i7 All share Model Number A1534 and Model Identifier MacBook8,1 / MacBook9,1 / MacBook10,1 respectively. Part Type: Touchpad flex cable only—does not include the trackpad housing, Taptic Engine, or mounting brackets. This is the ribbon cable that connects the Force Touch trackpad to the logic board. Function: Critical for Force Touch functionality—transmits pressure-sensitive input, multi-touch gestures (e.g., pinch, swipe, Force Click), and haptic feedback signals to the Taptic Engine. OEM-Quality Construction: Precisely matches Apple’s original in length, connector pitch, shielding, and routing—ensures reliable signal integrity and compatibility with macOS. Common Use Cases: Replacing a torn, creased, or liquid-damaged flex cable Restoring unresponsive or erratic trackpad behavior Completing a trackpad replacement when the original cable is unusable Replacing a torn, creased, or liquid-damaged flex cable Restoring unresponsive or erratic trackpad behavior Completing a trackpad replacement when the original cable is unusable Installation Note: Requires full bottom case removal and delicate disconnection of the ZIF connector. The cable routes tightly under the battery—extreme care is required. Recommended for experienced or certified technicians only.
Brand-new UK-layout keyboard replacement (Z1 Black) for MacBook Air models with M2, M3, and M4 chips (13.6″ and 15″, 2023–2025). Compatible with A2681 and A2941—precision-engineered for seamless fit and reliable typing performance. This is a brand-new, high-quality keyboard replacement designed specifically for the latest MacBook Air models featuring Apple’s M2, M3, and M4 chips (released 2023–2025). It fits both the 13.6-inch (Model A2681) and 15-inch (Model A2941) MacBook Air variants and comes in the sleek Z1 Black (Space Black) finish with a UK English layout (including the £ symbol and correct key positioning). Engineered to match Apple’s original specifications, this keyboard ensures a responsive, quiet, and comfortable typing experience with consistent key travel and tactile feedback. It includes the full top case assembly with integrated backlighting, function keys, and Touch ID sensor cutout (sensor not included), making it ideal for professional repairs or replacements after liquid damage, wear, or key failure. Installation requires technical expertise and proper tools due to the integrated nature of the MacBook Air’s top case design. Recommended for certified technicians or experienced repair professionals. Important Notes: This is a keyboard + top case assembly, not just keycaps. Touch ID sensor is not included—you must transfer your original sensor to maintain functionality. Compatible only with MacBook Air M2 (2022–2023), M3 (2023–2024), and M4 (2024–2025) models in 13.6″ (A2681) and 15″ (A2941) sizes. Color: Z1 Black (Space Black) – matches official Apple Space Black finish. Layout: UK English (ISO) – features the correct “£” key and shifted Enter key.
Kingston NV3 1TB NVMe SSD — ultra-fast PCIe 4.0 storage in a compact M.2 form.• Read up to 6,000 MB/s • Write up to 4,000 MB/s • 320 TBW enduranceForm Factor: M.2 2280 | Interface: PCIe 4.0 x4 | Warranty: 5-year limitedSKU: SNV3S/1000G Full Details: The Kingston NV3 PCIe 4.0 NVMe M.2 1TB SSD gives you ultra-fast performance and reliable storage for laptops and desktops. Built with PCIe 4.0 technology, it delivers read speeds up to 6,000 MB/s and write speeds up to 4,000 MB/s, making it perfect for gaming, content creation, or simply speeding up your system. PCIe 4.0 × 4 NVMe interface for lightning-fast speed Compact M.2 2280 design for easy installation Up to 6,000 MB/s read and 4,000 MB/s write speeds 1TB capacity for games, media, and apps Low power use and heat for better efficiency Works with most modern desktops and laptops that support M.2 NVMe (PCIe) drives. Backward compatible with PCIe 3.0 systems (at lower speeds). Kingston NV3 1TB M.2 NVMe SSD Quick start/warranty guide
Replacement cable for MacBook Pro A2794, designed to restore proper connection and functionality for damaged or faulty internal cables. Ideal for technicians and repair shops, ensuring reliable performance and correct fit for A2794 models. Type: USB-C to USB-C charging/data cable Model: A2794 Length: 2 meters (≈ 6.6 ft) Color: White Design: Woven braided cable for durability Connectors: USB-C (Male) on both ends Power Delivery: Supports up to 240 W high-power charging when used with a compatible USB-C PD adapter Data Transfer: USB 2.0 transfer speeds Designed for fast charging and syncing between USB-C devices
Reliable, secure, and built for productivity—the Lenovo ThinkPad T14 features a 10th Gen Intel Core i5 processor, 16GB RAM, and a fast 256GB SSD in a durable,14-inch business laptop.
The TeamGroup CX2 1TB SSD is a reliable 2.5-inch SATA III solid-state drive designed to upgrade laptops and desktops with faster boot times, smoother performance, and quiet operation. Using 3D NAND flash, it delivers consistent speed and improved durability compared to traditional hard drives. ⚡ SATA III Performance: Delivers fast everyday speeds for system boot, app loading, and file transfers compared to HDDs. 💾 1TB Capacity: Ample storage for OS, software, games, and large media files. 🧠 3D NAND Flash: Improves stability, efficiency, and lifespan versus older NAND types. 🔇 Silent & Shock-Resistant: No moving parts, making it quiet and more durable for laptops and mobile use. 🌡️ Low Power Consumption: Helps extend laptop battery life and reduces heat. 🛠️ Easy Upgrade: Standard 2.5″ 7mm design fits most SATA laptops and desktops.
Genuine-spec UK layout keyboard replacement for MacBook Air 13″ (Model A2337, 2020)—featuring Apple’s Magic Keyboard with scissor-switch mechanism, backlighting, and full OEM compatibility for reliable, authentic typing experience. Compatible With: MacBook Air 13-inch (2020, Model A2337) – includes both Intel (Core i3/i5/i7) and Apple M1 chip variants. Layout: UK English (QWERTY) with £ symbol, taller vertical Enter key, and standard UK key labeling—matches Apple’s original regional configuration. Keyboard Type: Apple’s Magic Keyboard with scissor-switch mechanism—offering improved durability, quieter keystrokes, and 1mm key travel compared to older Butterfly designs. Integrated Features: Backlit keys for low-light environments, ambient light sensor support, and original-style ribbon cable connector for direct logic board connection. Build & Fit: Precision-engineered to align perfectly within the MacBook Air’s top case—ensures flush mounting and consistent key feel. Installation Note: The keyboard is factory-glued into the top case and requires full disassembly for replacement. Re-adhesion must be done carefully with proper adhesive. Recommended for experienced repair technicians.