- Control Transmission : 2.4G RF Radio Frequency Technology- Keys Quantity : 81 Keys- Battery Type : AAAx2 (No include battery)- Material : Plastic + Silicone (Backlight / Backlit )- Consumpation : !#!lt!*!10MA- Size : 172*52*19mm- Sensor : 3 Axir Gyroscope+ 3 Axir Accelerator- Use Distance : !#!gt!*!5 M- Color : Black- Sun key : Open / Close Backlight- Full Keyboard and TV Remote- Motion Sensor Allows Mouse to be Controlled by Waving the Remote- Frequency Range: 2.4~2.4835GHz- Upgradeable Function for Motion Gaming- 2.4G Transmission up to 5m- Effective Batter Saver, turn into Sleep Mode for 20 Seconds, Inaction !#!lt!*!6uA- Plug-and-play Function,Compatible with USB1.1 and USB2.0!#!lt!*!6uASpecifications* 2.4GHz DSSS radio transceiver, 30m max distance, no voice.* Powered by 2 * AA battery (Not included)* System requirements: Windows 98/ 2000/ Me/ Vista/ NT/ XP/ 7, Android, Linux (Debian-3.1, Redhat-9.0)* Product weight: 115 g* Package weight: 160 g* Product size (L * W * H): 6 * 3 * 18cm / 5 * 2.5 * 16 in Support system:- Windows 2000.XP. Vista.Windows CE.Windows 7 Android- Linux (Debian-3.1. Redhat-9.0 Ubuntu-8.10 Fedora-7.0 tested)- Android 4.0