Features:Bluetooth cable-free operation.Up to 10m operating distance.Ultra-Slim Design with 78 keys.Stylish layout with full size keyboard.low-noise when typing.Scissor-switch keyboard.With a working status indicators.Powered by 2 AAA Batteries. (batteries NOT included)With ON/OFF switch.Built-in intelligent power management for power conservation.System Requirements: MAC OS， Windows OS (Windows XP， Vista， 7) Speicifications:Bluetooth version: Bluetooth 2.0Remote control distance: Up to 10mPower: 2 * AAA batteries (NOT provided)Color: White + Silver(Like show in the picture) Package Including:1 * Bluetooth Keyboard No User Manual Included