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: Rii  Model: mini i12  Supporting 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 style  Connect port: With USB2.0 above  RF mode: 2.4Ghz GFSK  Transmission distance: Up to 10 meters  Transmission power: Less than +4db  Power supply: Rechargeable 450mAh polymer Lithium-ion battery  Charging voltage: 4.4V ~ 5.25V  Charging current: 300mA  Sleeping Current: 0.8mA  Operation Voltage: 3.3V  Material: ABS + PC + Aluminium alloy  Color: Black & Silver  Product Size: 260 * 83 * 13.5mm/ 10.2 * 3.3 * 0.5in  Product weight: 205g/ 7.23oz  Package size: 26.3 * 8.7 * 2.8cm/ 10.4 * 3.4 * 1.1in  Package weight: 280g/ 9.9oz  Package contents:  1 * Wireless Keyboard  1 * USB Wireless Receiver  1 * USB Charging Cable  1 * User Manual (English)