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.
SCREEN LG 24″ FHD Borderless IPS 100HZ 5MS with FreeSync™ LG-24MR400-B SCREEN LG 24″ FHD Borderless IPS 100HZ 5MS with FreeSync™ LG-24MR400-B Technical Details
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
Laptop Charger for HP 90W 19.5V 4.62A (Blue Tip) Pavilion 17 15-E 17-E 14-E 15-AK Series Touchsmart Sleekbook M6-K M7-J 17-J M6 M7 709986-004 709986-002 753560-001 710413-001 PPP012D-S AC Adapter
Wireless freedom with zero compromise. The A4Tech 3330N is a high-performance 2.4GHz wireless combo that combines the GK-3 full-size keyboard with the G3-330N optical mouse. Featuring a 10–15m operating range, 12-month battery life, and 12 multimedia hotkeys, it’s the perfect plug-and-play solution for a clean, cable-free workspace. The A4Tech 3330N Wireless Desktop is engineered for consistent stability and long-term durability. Utilizing advanced Smart Wireless SoC technology, this set minimizes circuit loss and interference, providing a reliable connection that feels as responsive as a wired setup. Key Features: Consistent Wireless Stability: Advanced 2.4GHz powerful wireless connection with a distance of up to 10–15 meters. Auto-channel stabilizing ensures essentially no delays or connection conflicts. Energy Efficient Design: Enjoy up to 12 months of battery life thanks to energy-efficient engineering. The set also features Auto Power Saving with a 4-level sleep mode that activates after just 0.2s of inactivity. Full-Size Multimedia Keyboard: The GK-3 keyboard includes 12 Fn hotkeys for quick access to media controls, along with laser-inscribed keys that never fade and adjustable legs for ergonomic comfort. Precision Optical Mouse: The included G3-330N mouse offers a 1200 DPI resolution for smooth and accurate tracking. Its symmetric design makes it comfortable for both right and left-handed users of all hand sizes. 16-in-One Gestures: The mouse supports 16 different gestures to perform selectable hotkey commands, enhancing your workflow and productivity. Spill-Resistant Durability: The keyboard is designed with built-in drain holes, ensuring that accidental liquid spills won’t end your workday. Specifications at a Glance: Connection: 2.4G Hz Wireless (Nano USB Receiver) Keyboard Model: GK-3 (Full-Size) Mouse Model: G3-330N (1200 DPI Optical) Operating Range: 10 to 15 Meters Hotkeys: 12 Fn Multimedia Hotkeys Battery: 1 AA for Keyboard, 1 AA for Mouse (Up to 12 months) Compatibility: Windows 7 / 8 / 8.1 / 10 / 11
Lenovo Battery L15L4A01 Battery for Lenovo V4400 Ideapad 100-14IBD 100-15IBD 110-15ISK 110-17ACL 110-17IKB 300-15ABM 300-15IBR 300-15IBY 300-15IBR 300-15IBY 300-15IBY 300-15ISK 300-17ISK 80Q70021US 80UD Lenovo Battery L15L4A01 Battery for Lenovo V4400 Ideapad 100-14IBD 100-15IBD 110-15ISK 110-17ACL 110-17IKB 300-15ABM 300-15IBR 300-15IBY 300-15IBR 300-15IBY 300-15IBY 300-15ISK 300-17ISK 80Q70021US 80UD[14.8V 33Wh] About this item Battery type: Li-ion, voltage: 14.4 V, capacity: 32 Wh, color: black Compatible Part Number:5B10H70338 5B10H70339 5B10H70340 5B10H70341 5B10H71978 5B10H71979 5B10K02215 5B10K02218 5B10 KK0221 9 5B10K80878 5B10L04213 5B10L12769 5B10L12770 5B10L12771 5B10L30040 5B10L30041 L15L4A01 L15L4E. 01 L1 L5M4A01 L15M4E01 L15S4A01 L15S4E01 Fits Model: Lenovo Ideapad 110-15ISK Series Tablet 80UD 80UD001TUS; 100-14IBD 100-15IBD 110-15ISK 110-17ACL 110-17IKB 300-15ABM 300-15IBR 300-15IBR 300-15IBR 300-15 IBY 300 -15IBR 300-15IBY 300-15IBY 300-15ISK 300 -17ISK 80RJ 80RK 80MJ 80QQ 80UD 80NL 80M3 80Q7 80QH New from manufacturer. CE/FCC/RoHS certified for safety.
This replacement touchpad for MacBook Air A2179 comes in Rose Gold and is sold without the flex cable. Perfect for restoring smooth trackpad performance, it’s ideal for repair technicians and users replacing a damaged or non-working touchpad. The MacBook Air A2179 Touchpad (Rose Gold) is a high-quality replacement part designed to restore full trackpad functionality to your laptop. Whether your original touchpad is unresponsive, physically damaged, or experiencing tracking issues, this replacement provides a reliable solution. Please note that this unit is without the flex cable, meaning it requires the original flex or a separate replacement flex for installation. Ideal for repair shops and technicians, it ensures smooth navigation and precise control. Compatible with MacBook Air A2179 Rose Gold Color Match for original look and finish Replacement Touchpad Only (without flex cable) Restores Smooth Trackpad Functionality Precision Tracking & Gesture Support (when installed correctly) Ideal for Repairs & Replacements High-Quality Build designed for durability and long use Designed specifically for Apple MacBook Air A2179 models. Recommended for technicians and repair shops or users replacing a faulty touchpad. Ensure compatibility before purchase and note that a flex cable is required for installation.
HT03XL L11119-855 Laptop Battery for HP Pavilion 14-CE 14-CF 14-DF 15-CS 15-DA 15-DB 15-DW 17-by 17-CA Series 15-CS0053CL 15-DW0033NR 15-DA0014DX L11421-542 L11421-2C2 HSTNN-UB7J HSTNN-DB8R HT03041XL About this item Compatible with: HP HT03XL Battery, for HP Pavilion 14-CE 14-CF 14-CK 14-cm 14-DF 14-MA 14Q-CS 14Q-CY 14S-CF 14S-CR 15-CS 15-CW 15-DA 15-DB 15G-DR 15T-DA 15T-DB 17-by 17-CA Series 14-CE0000 14-CE0020TX 14-CE0025TX 14-CE0027TU 14-CE0028TX 14-CE0029TX 14-CE0030TX 14-CE0034TX 14-CE1058WM 14-CE0068ST 14-CE1056WM 14-CE0064ST 14-CE0006DX 14-CF0000 14-CF0014DX 14-CF1015CL 14-CM0000 14-CM0020NR 14-CM0012NR 14Q-CS0000 14Q-CS0006TU 15-CR0000 15-CR0087CL 15-CR0052OD 15-CR0055OD 15-CR0037WM 15-CR0051CL 15-CR0091MS 15-CR0010NR Replacement Battery for HP Pavilion 15-CS0000 15-CS2010NR 15-CS025CL 15-CS2073CL 15-CS2079NR 15-CS1063CL 15-CS0072WM 15-CS0051WM 15-CS1065CL 15-CW0000 15-CW1063WM 15-DA0000 15-DA0066CL 15-DA0002DX 15-DA0079NR 15-DA1005DX 15-DA0032WM 15-DA0033WM 15-DA0073MS 15-DA0012DX 15-DA0071MS 15-DA0086OD 15-DB0000 15-DB0015DX 15-DB0031NR 15-DB0011DX 15-DB0066WM 15-DB0005DX 15-DB0048NR 15-DB0051OD 15-DB0048CA 17-BY0000 17-BY1053DX 17-BY1033DX 17-BY0060NR 17-BY0021DX 17-BY0053CL 17-BY0021CY 17-BY1055CL Laptop Compatible for HP Pavilion 240 G7, 245 G7, 250 G7, 255 G7, 340 G5, 348 G5 Series;P/N: HSTNN-DB8R HSTNN-DB8S HSTNN-IB80 HSTNN-IB8O HSTNN-LB8L HSTNN-LB8M HSTNN-UB7J HT03041XL HTO3XL HT03XL L11119-855 L11421-1C1 L11421-1C2 L11421-2C1 L11421-2C2 L11421 -2C3 L11421-2D1 L11421-2D2 L11421-421 L11421-422 L11421-423 L11421-542 L11421-544 L11421-545 TPN-C136 TPN-I130 TPN-I131 TPN-I132 TPN-I133 TPN-I134 TPN-Q207 TPN-Q208 TPN-Q209 TPN-Q210 Specifications: ht03xl battery for hp, Battery Type: Li-ion Voltage: 11.55V Capacity: 41.7WH 3470mAh;Cells: 3-cell; Color: Black Packages includes: l11119-855 hp battery, with Two Free Screwdrivers; HTO3XL Battery for hp model 15-cs0085cl 15-cs0073cl 15-cs3075cl 15-cs3073c 15t-cs300 15t-cs200 15-da0021cy 15-da0011la 15t-db000 14-cf0013dx 14-cf0051od 15-ef0023dx Compatible devices: HP HT03XL Rechargeable li-ion Battery, for HP Pavilion 14-CE 14-CF 14-CK 14-cm 14-DF 14-DH 14-MA 14Q-CS 14Q-CY 14S-CF 14S-CR 15-CS 15-CW 15-DA 15-DB 15G-DR 15T-DA 15T-DB 17-by 17-CA Series 15-cs0053cl 15-cs1063cl 15-cs2064st 15-cs3063cl 15-cs3075cl 15t-cs200 15-da0032wm 15-da0014dx 17-by0063cl 17-by2075cl 17-by0071cl 17-by1022cl 17-by0088cl 17-by0062st 17-by0020cy 17-by0017cy 17-by1003cy 17-ca1010ds 17-by0019ds 17-by2003ca 17-by3613dx 17-by1972cl 17-ca1031dx 17-ca1061nr 17-ca0054cl
The Transcend TS8XDVDS-K is an ultra-slim, lightweight external portable DVD writer designed for laptops, ultrabooks, and thin desktop computers lacking internal optical drives. Offering fast 8X DVD and 24X CD read/write speeds, it provides a seamless plug-and-play solution for burning media, backing up critical data, and playing movies on the go without requiring an external power adapter. ✅ Full Specifications: Model: Transcend Extra Slim Portable DVD Drive (TS8XDVDS-K) – Black Edition Interface / Connection: Mini-USB to USB Type-A interface (Includes a specialized USB double-headed power/data cable) Performance / Speed: * DVD±R Read/Write: Up to 8X DVD±R DL (Double Layer) Read/Write: Up to 6X DVD-RAM Read/Write: Up to 5X CD-R/RW Read/Write: Up to 24X Performance / Speed: * DVD±R Read/Write: Up to 8X DVD±R DL (Double Layer) Read/Write: Up to 6X DVD-RAM Read/Write: Up to 5X CD-R/RW Read/Write: Up to 24X Capacity / Media Compatibility: Supports standard CD-R/RW, DVD±R, DVD±RW, DVD±R DL, and M-DISC long-term archival media formats. Material & Build: Durable, premium hard plastic housing with a sleek, rounded-edge aesthetic. Design & Form Factor: Extra-slim layout measuring just 13.9mm in thickness. Top-loading tray mechanism with an emergency manual eject hole. Power Setup: Fully USB bus-powered (No external power wall adapter required; draws power directly from host computer USB ports). Security & Software: Includes a free download of CyberLink Media Suite 10 (Media Writer) data burning software via registration. Supports TV Connectivity (allows plugging into supported smart TVs to play media files directly). Compatibility: Windows 11 / 10 / 8 / 7, macOS (10.7 and above), and Linux Dimensions: Approx. 142.8 x 148.0 x 13.9 mm (5.62″ x 5.83″ x 0.55″) Weight: Approx. 264 grams (0.58 lbs)
TE03XL Battery TE03061XL for HP Omen 15-ax000:15-ax033dx 15-ax210nr 15-ax001ns;HP Pavilion 15-bc000:15-bc008tx and More 849910-850 849570-541 542 543 HSTNN-UB7A TPN-Q173-11.55V 61.6Wh 3-Cell About this item Specifications: – Battery type: Li-ion || Voltage: 11.55VV|| Capacity: 61.6Wh || Cells: 3-cell Compatible Models: – HP Omen 15-ax000:(15-ax000~15-ax099);HP Pavilion 15-BC000 Series (15-bc000~099;15-bc300~399) Replacement Part Number: – HP TE03XL HSTNN-UB7A TPN-Q173 TE03061XL 849910-850 849570-541 849570-542 849570-543 3ICP7/65/80Replacment Part Number: – HP TE03XL HSTNN-UB7A TPN-Q173 TE03061XL 849910-850 849570-541 849570-542 849570-543 3ICP7/65/80 Easy Installation: The replacement process is straightforward and provides our tools.
Laptop Battery for Acer E5-573 Battery for Acer AL15A32, Acer Aspire E5-422, Aspire E5-522, Aspire V3-574 Laptops. About this item Compatible For Preferred Model : Acer Aspire V3-574G E5-473G E5-573G E5-553G E5-522 Warranty Not Covered if Defects due to External Causes, Accidental, Physical or Liquid Damage, Cut, Burnt, Misuse and Missing Warranty Stickers or Labels. Battery Capacity/Power Capability (mAh/Wattage) be different From The Reference Picture But the Backup of the Battery Will Be the Same As the Original Please Match Your Product With The Image Provided Before Placing The Order
VSTAR UA150 1500VA UPS | Simulated Sine Wave Output | 230V | 24VDC Battery System | 50/60Hz Auto Sensing | Compact Design | Black Color | Model UPS-UA150 Robust 1500VA Power CapacityThe VSTAR UA150 delivers 1500VA of reliable backup power to safeguard your essential electronics, including PCs, servers, routers, and security systems. Dual Voltage CompatibilitySupports 110/120V or 220/230/240V input, making it ideal for use in a variety of international voltage environments. Stable 230V Output with AVR FunctionalityMaintains a consistent 230VAC output, protecting connected devices from voltage fluctuations and surges. Simulated Sine Wave OutputProvides a simulated sine wave waveform suitable for most common electronics, especially during normal backup operations. Auto-Sensing FrequencyAutomatically detects 50Hz or 60Hz power sources, adapting to your electrical environment without manual adjustments. Compact, Space-Saving DesignMeasuring just 353 x 149.3 x 162 mm, the UA150 fits neatly on or under desks, in server cabinets, or against walls. Reliable 24VDC Battery SystemOperates on a 24VDC internal battery configuration, delivering longer runtimes and better reliability during outages. Universal Output SocketsEquipped with IEC-style or universal output sockets that are compatible with a wide range of devices. Sleek Black FinishA clean and modern black color allows it to blend seamlessly into professional or home environments. Ideal for Home or OfficeProtects critical electronics, telecom gear, and POS systems from data loss and downtime.
Original 13.3-inch LCD display assembly for MacBook Air A1466, pulled from a working unit. OEM, drop-in replacement for cracked or nonfunctional screens—ideal for restoring perfect visuals. This is a genuine Apple LCD display assembly for the MacBook Air model A1466 (mid-2013 to ~2017). It was removed from a working machine (“pulled”) and tested. It’s intended to replace failed, cracked, or damaged screens with an OEM original part. Key Features & Functionality Factory original LCD panel with LED backlight Includes glass, mounting frame, hinges, display cable Calibrated by Apple for color accuracy, brightness, contrast Tested for display quality, backlight uniformity, dead or stuck pixels Fits directly in A1466 models with correct alignment and cable interface Specifications Important Notes & Caveats Must ensure your MacBook is A1466 — wrong model = mismatch in frame, mounting, cable. As a used component, there may be light cosmetic wear or micro-scratches. Always test before full installation (connect the cable, boot, check display and backlight). Be careful handling: glass is fragile and the flex cable is delicate. Alignment and screw placement are critical — incorrect installation can damage the new screen.
Genuine Apple sleep/wake sensor flex cable (Hall effect sensor) for MacBook Air 13.6″ (Model A2681, 2022, M2)—ensures automatic display sleep when the lid is closed and wake-on-open functionality. OEM part number 821-04129-02. Compatible With: MacBook Air 13.6-inch (2022, Model A2681) with Apple M2 chip (all colors: Silver, Space Gray, Starlight, Midnight). Apple Part Number: 821-04129-02 (exact OEM service part). Function: Contains the Hall effect sensor that detects the magnet in the MacBook Air’s display lid. This allows macOS to: Sleep the system when the lid is closed Wake instantly when opened Prevent false sleep/wake events during use Sleep the system when the lid is closed Wake instantly when opened Prevent false sleep/wake events during use Location: Mounted near the right side of the keyboard, adjacent to the battery and logic board. Common Failure Symptoms: MacBook doesn’t sleep when lid is closed MacBook wakes randomly in a bag “Lid closed” not recognized in macOS Requires manual sleep or power button use MacBook doesn’t sleep when lid is closed MacBook wakes randomly in a bag “Lid closed” not recognized in macOS Requires manual sleep or power button use Part Type: Flex cable with integrated Hall sensor—not just a cable, but a calibrated magnetic sensor module. Installation Note: Requires full bottom case removal and careful disconnection of the battery. The sensor is adhered near the I/O area—do not bend or puncture. Recommended for experienced technicians.
Elevate your game with the Logitech G102, featuring a high-precision 8,000 DPI sensor and vibrant Lightsync RGB lighting. Designed with a classic six-button layout and gaming-grade performance, it offers incredible accuracy and responsiveness for both competitive play and daily productivity. The Logitech G102 is engineered for speed, consistency, and comfort. At its core is a gaming-grade sensor that provides adjustable sensitivity, allowing you to tailor your control to your specific playstyle. Whether you are navigating complex spreadsheets or hitting precise headshots, the G102 delivers a seamless experience with a classic design trusted by gamers worldwide. Gaming-Grade 8,000 DPI Sensor: Experience ultra-precise tracking and consistent responsiveness. The sensitivity is fully adjustable from 200 to 8,000 DPI. Lightsync RGB Color Wave: Choose from vibrant animations or customize your own from approximately 16.8 million colors to match your setup’s aesthetic. Mechanical Spring Button Tensioning: The primary left and right buttons feature a metal spring tensioning system, providing crisp, reliable clicks and a premium feel. Classic 6-Button Design: A familiar, comfortable shape that allows you to play or work for hours without fatigue. Each button can be customized via software for specific in-game actions. On-the-Fly DPI Shifting: Cycle through up to five sensitivity settings with the press of a button, allowing you to switch from precision sniping to rapid movement instantly. Resolution: 200 – 8,000 DPI Connection Type: USB 2.0 (Wired) USB Data Format: 16 bits/axis USB Report Rate: 1000Hz (1ms) Microprocessor: 32-bit ARM Cable Length: 2.1 meters Compatibility: Windows 7 or later, macOS 10.13 or later, ChromeOS Logitech G102 Gaming Mouse User Documentation
A capable pre-owned Dell Latitude 5501 with 15.6" touchscreen, 9th Gen Core i5, 16GB RAM, 256GB SSD, and NVIDIA GeForce MX150 2GB—ideal for business users who need a balance of performance, portability, and light graphics power.
Genuine-spec touchpad flex cable for MacBook Pro 13″ (Model A2289, 2020, Intel)—restores full Force Touch functionality, haptic feedback, and preci multi-touch gesture control. OEM-quality replacement for damaged or faulty original cables. Compatible With: MacBook Pro 13-inch (2020, Four Thunderbolt Ports, Model A2289, Model Identifier MacBookPro16,2) with Intel Core i5/i7 processors. 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 path Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing path 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 unusable Fixing: Intermittent or erratic trackpad behavior Loss of Force Touch or haptic feedback Complete trackpad unresponsiveness Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is unusable Fixing: Intermittent or erratic trackpad behavior Loss of Force Touch or haptic feedback Complete trackpad unresponsiveness Intermittent or erratic trackpad behavior Loss of Force Touch or haptic feedback Complete trackpad unresponsiveness Installation Note: Requires full bottom case removal and battery disconnection. Cable routes under internal components (speaker, logic board)—must follow original path. Connects via ZIF (Zero Insertion Force) socket—align carefully, never force. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under internal components (speaker, logic board)—must follow original path. Connects via ZIF (Zero Insertion Force) socket—align carefully, never force. Recommended for experienced or certified technicians only. Important Compatibility Notes: ✅ Only for A2289 (13″, 4 Thunderbolt ports, 2020, Intel) ❌ Not compatible with: A2251 (2 Thunderbolt ports, 2020) A2338 (M1 MacBook Pro, 2020) Any MacBook Air or 14″/16″ MacBook Pro ✅ Only for A2289 (13″, 4 Thunderbolt ports, 2020, Intel) ❌ Not compatible with: A2251 (2 Thunderbolt ports, 2020) A2338 (M1 MacBook Pro, 2020) Any MacBook Air or 14″/16″ MacBook Pro A2251 (2 Thunderbolt ports, 2020) A2338 (M1 MacBook Pro, 2020) Any MacBook Air or 14″/16″ MacBook Pro
lenovo battery L15L2PB4 L15L2PB5 Laptop Battery for Lenovo IdeaPad 310-15ISK 310-15IKB 310-15ABR 310-15IAP 310 Touch-15IKB/15ISK 510-15ISK 510-15IKB L15C2PB5 L15M2PB5 L15M2PB3 L15C2PB3 L15C2PB7 L15S2TB0 7.6V 30Wh About this item Battery type: Li-ion; Voltage: 7.6V/7.72V; Capacity: 30Wh/39Wh Compatible Models: Fit for Lenovo IdeaPad 510-15IKB/510-15ISK Series; IdeaPad 310 Touch-15IKB/310 Touch-15ISK Series; IdeaPad 310-15ABR/310-15IAP/310-15IKB/310-15ISK Series Replace Part Numbers: L15L2PB4 L15L2PB5 L15C2PB5 L15M2PB5 L15M2PB3 L15C2PB3 L15C2PB7 L15S2TB0 L15S2TBO 5B10K88299 8S5B10K88299 2ICP6/54/90 2ICP6/55/90 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. The actual operation time will depend on how much electricity the device requires and how you use it.