This wireless pad is great for the lecturer, sales manager or presenter! You can make a presentation and operate PC wirelessly via this wireless keyboard. Change slides and screen options, write on the screen. Also great for people who want to watch TV via their PC. You can sit comfortably and select channels right from your chair!Features:With LED light on the top.Up to 10M wireless operation of your PC.QWERTY key layout supporting multi languageUltra 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 * 1.26inPackage 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)AndroidMACPowered by SoldEazy