CK0379B Features Wireless Bluetooth technology Designed with a touch control numeric keypad Plug-and-play capability Long distance wireless control Comfortable to the touch Great for both home and office use Compact size & lightweight， convenient to use General Specs Brand & Model iPazzPort   Wireless Technology Bluetooth Battery 2 x AAA batteries (included) Operating Systems Windows/Mac OS/Linux/Google/Android Dimensions 262 x 84 x 34 mm