Features:With LED light on the top.Up to 10M wireless operation of your PC.QWERTY key layout supporting multi language.Ultra sensitive touchpad supporting multi touch，USB dongle， Plug and play: no need to install software.Replaceable 3A battery (not included).Indication light: Multiple indication lights for signal， data transmission and power.Unique Page up and Page down key for presentation.Flip 90 degree touch convert (Fn+ESc).3 in 1: Keyboard， mouse and touchpad 3 in 1.Specifications:Operating distance: 10 metersTransmit power: Max + 4dBmWorking voltage: 3.0VWorking current: <70mAPower supply: 3A battery * 2(not included)Item color: BlackItem size: 15.8 * 5.6 * 1.5cm/ 6.22 * 2.20 * 0.59inItem weight: 79g/ 2.78lozPackage size: 22 * 12.5 * 3.2cm/ 8.66 * 4.92 * 1.26in Package weight: 116g/ 4.09ozSystem Requirements:Windows 2000Windows XPWindows Vista ，windows CE，windows 7Linux(Debian-3.1，Redhat-9.0 Ubuntu-8.10 Fedora-7.0 tested)AndroidMACPackage Contents:1 * Mini Wireless Keyboard1 * USB Dongle1 * User Manual