Brand RII Model I9 Quantity 1Piece Color Black Material Wire drawing stainless steel + plastic Compatible Models I9 Supported OS Windows 2000 Windows XP Windows Vista Windows CE Windows 7 Linux(Debian-3.1Redhat-9.0 Ubuntu-8.10 Fedora-7.0 tested Wired/Wireless Wireless Keys 84 Connection Bluetooth V3.0 + HS Operating Range 10m Battery 500mAh Charging Time 4~6 hours Working Time 200-360 hours Standby Time 500hours Features PC IPTV Google TV WEB TV Android TV Box Ipad Xbox 360 PS3 Smart phone Other Transmission power:+4db working voltage: 3.3V PackingList 1 x Bluetooth keyboard 1 x USB cable 1 x English manual