Features:Perfect combo for you: Wireless QWERTY Keyboard + Touchpad which supports multi-finger functions.2.4GHz wireless technology， no messy cables anymore and you can play computer games on the bed or in the sofa comfortably.Comfortable and excellent key touch feeling to release your fatigue.Shortcut keys to increase your working efficiency.Plug and play， with a range up to 10 meters working distance.The keyboard will turn to sleep mode automatically if no key pressed within 3 minutes."ON/OFF" switch for convenient operation and energy saving.Built-in lithium battery-powered.Ultra slim design， max. thickness is only 13mm.Specifications:Brand: RiiModel: mini i12Supporting system: Windows 2000/ Windows XP/ Windows Vista/ Windows CE/ Windows 7/ Windows 8， Linux (Debian-3.1， Redhat-9.0 Ubuntu-8.10 Fedora-7.0 tested)， Android OS (With standard USB interface)Receiver (dongle): Nano styleConnect port: With USB2.0 aboveRF mode: 2.4Ghz GFSKTransmission distance: Up to 10 metersTransmission power: Less than +4dbPower supply: Rechargeable 450mAh polymer Lithium-ion batteryCharging voltage: 4.4V ~ 5.25VCharging current: 300mASleeping Current: 0.8mAOperation Voltage: 3.3VMaterial: ABS + PC + Aluminium alloyColor: Black & SilverProduct Size: 260 * 83 * 13.5mm/ 10.2 * 3.3 * 0.5inProduct weight: 205g/ 7.23ozPackage size: 26.3 * 8.7 * 2.8cm/ 10.4 * 3.4 * 1.1inPackage weight: 280g/ 9.9ozPackage contents:1 * Wireless Keyboard1 * USB Wireless Receiver1 * USB Charging Cable1 * User Manual (English)