Description:Product Name: Ultra Mini Wireless Keyboard with Mouse Touchpad RF2.4GThis is a wonderful combo.2.4GHz Wireless mini QWERTY keyboard， Touch Pad and presenter combo， with USB interface receiver. This product consists not only normal wireless keyboard keys， but also of multimedia control keys and PC gaming control keys.It has built-in programmable smart touch pad-the world's first Touchingpad which can be used in horizontal and vertical directions.Specification:Measurements(L*W*H):151mm*59mm*12.5mmWeight:90g/0.20poundOperational range: up to 10 metres/30feetTransmission Power: +4dBM (max.)Charging Voltage: 3.3VCharging Current: ��300mAWindows 2000Windows XPWindows Vista， Win CE， Win 7， Win 8Linux (Debian-3.1， Redhat-9.0， Ubuntu-8.10， Fedora-7.0)Package included:1 * wireless keyboard1 * USB cable1 * Manual