EH0263B Features 2.4GHz RF wireless connection， convenient to use 82-key and high sensitivity touchpad design Equipped with USB transceiver， plug and play Equipped with LED backlight QWERTY keyboard layout Equipped with code function to eliminate radio interference Laser point design is perfect for business presentations Equipped with touchpad vertical 90-degree flip switch (Fn + ESC key) Equipped with Windows Multimedia control key (Google TV hotkey) Supports multi-point touch Allows you to share large screen color TV and projector in long distance Compact size for ease of carrying Supports page turning with the equipped scroll bar Easy to pairing General Specs Brand & Model KP-810-10A   Type 2.4GHz air mouse Frequency 2.4GHz Operation Range Up to 10 m Battery Capacity 400mA built-in rechargeable lithium battery Transmission Power Max +4dBm Operating Voltage 3.7V Operating Current <500mA Charging Voltage 4.2-5.05V Charging Current <350mA Sleep Current <1mA Standby Time 600 hours Language German Operating Systems Windows OS， Linux (Debian-3.1， Redhat-9.0， Ubuntu-8，10， Fedora-7.0tested)， DOS， BOIS， Android PC OS， Mac OS， iOS Applications Home entertainment， real estate accessories， training conferences， speeches， car PCs， PC network entertainment， KTV VOD system， and can work with projectors or network TVs (Google TV Box) Package Details Weight: 174.41 g Size: 22.00*12.5*4.00 cm Package Includes * KP-810-10A 2.4GHz RF Mini Air Mouse (German Version) * USB Cable