Specification:Receiver(dongle): Nano style Connect port: With USB2.0 above Transmission mode:GFSK 2.4GHz wireless，up to 10 metersTransmission power:Less than +4dbCharging voltage:4.4V~5.25VCharging current:300mASleeping current class1:30uAOperation voltage:3.7VOperating current:��50mAProduct Size:L*W*H/145*100*17mm/5.71*3.93*0.66''System Requirements:for HID compatible devicefor Terminal with USB portfor Windows 2000for Windows XPfor Windows Vista，Windows CE，Windows 7，Windows 8for Linux(Debian-3.1，Redhat-9.0，Ubuntu-8.10，Fedora-7.0 tested)for Android for OS(With standard USB interface)Features: Built-in high sensitive smart touchpad with 360-degree flip designPerfect for PC， Pad， for Android TV Box， for Google TV Box， for Xbox 360， for PS3， for HTPC，for IPTV2.4ghz Mini wireless QWERTY keyboard， touchpad combo， led backlit with USB interface adapterPerfect combo: 92 keys Wireless QWERTY Keyboard + Touchpad which supports multi-finger functions， A single finger click as left mouse function， two-finger click as the right mouse function， double finger drag as the rolling screenPackage include:1 x Keyboard Touchpad Combo1 x USB Wireless Receiver1 x USB Charging Cable1 x User Manual