1、Plug And Play: Just plug a small USB into the computer port and use it without downloading any App. Numeric keypad work without delay and dropout, fast data transfer, greatly improving your efficiency. 2、Low Noise: The number pad has low noise operation, excellent touch and precise control, ergonomic design, ensuring long term use without fatigue. 3、Widely Used: The mini number keypad is particularly suitable for employees working in spreadsheets, accounting documents or financial applications. 4、Automatic Sleep Function: If not use for 5 minutes, the mini numeric keypad will automatically enter the sleep mode, not worrying about wasting power. When the battery is low, the indicator light will remind you to avoid being unavailable when you need it most. 5、Slip Resistant Design: The keypad has retro round key caps design, having slip resistant design on the back to prevent it from moving across the desk and affecting your work. Item Type: Wireless Numeric Keypad Material: PBT Battery Type: 1PC AAA Battery (Not Included) Keys Amount: 18 Keys Connection Mode: 2.4G System Requirements: For Windows XP/For Win7/For Win8/For Win10, For IOS 1 x Wireless Numeric Keypad 1 x Receiver 1 x Instruction