Widely Compatibility: This Bluetooth number pad is compatible with PC, laptop, desktop and computers running Windows systems. Note: This number pad does NOT support Mac OS systems. Multi-function 26-key Keypad: With NumLo, ESC, Delete and a shortcut key which can open the computer calculator directly etc.The number keyboard is more unique in that it can be combined into 3 currency symbols through Fn+composite Bluetooth Number Pad Rechargeable: The wireless numeric keyboard with rechargeable lithium battery, avoid continuous battery consumption and battery replacement. This numeric keypad uses the latest stable buletooth 3.0 connection,plug and play, no delay and caton, fast data transmission, and working range is up to 33FT Comfortable Numeric Pad: With advanced quiet SCISSOR-SWITCH KEYS.