Multi-function 18-key Keypad - Numeric keypad supports NumLock, Home, Del, etc. With shortcut key which can open the computer calculator directly. The Multi-Function 18 Keys Wireless external number keypad for laptop is more unique than most keyboards. Can assist in accounting tasks, excel spreadsheets, and more to expand your existing keyboard. 2.4G Wireless and Easy to use - 2.4GHz Numeric Keypad Plug and Play! You can just plug the receiver into a USB port and start crunching numbers right away, freedom-fast data transmission, virtually no delays or flashback,and its wireless distance up to 10m(33ft). Low power consumption - It will auto enter sleep mode when not in use for 5 minutes, so you dont need to worry about wasting power, 12-month battery life and long standby time, do not need to replace the battery frequently. There is a battery indicator on the top left of the number key, which will remind you to replace the battery in time when the battery is low. Quiet and Touch Comfortable - Made of ABS Material which offer great comfortable touch and precise control, good resilience and fast response. The ergonomic tilt angle provides extra comfort which helps re-duce strain, especially suitable for the staff working in spreadsheets, accounting documents or financial applications. Widely Compatibility - Wireless numeric pad works with PC, laptop and desktop computers that have Windows 2000 or XP or Vista or 7 or 8 or 10 systems. Please feel free to if you have any question. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.