RF304 22 Keys Numeric Keypad USB 2.4G Wireless Keyboard with Receiver

Support for , for , for , for 7/8/10. 22-key wireless numeric keypad, USB plug and play. Use time up to 80 hours , keystrokes up to 3 million times. Item Type: 22 Keys Numeric Keypad Material: ABS Optional Color: Silver Black / Iron Grey / Gold Support System: for    , for  , for  , for   7/8/10 Number Of Keys: 22 Keys Support Wireless: 2.4G Wireless Keyboard Life (Keystrokes): 3 Million Times Response Speed: 5 Milliseconds Wireless  Distance: Approx. 10m / 32.8ft Working Current / Voltage: 0.25MA 3V Battery Type & Capacity: 2 x (Not Included) Use Time: 80 Hours