Features:4 in 1: Keyboard， mouse and touchpad and LED light.RF 2.4 G wireless connection， smart and portable， Max distance up to 10 meters.Real QWERTY full function mini keyboard with more defined buttons.Super sensitive touchpad supporting multi touch and scrollbar.Support multi-language.Plug and play: no need to install software.System requirements:Android OS， Mac OS， Linux(Debian-3.1， Red hat-9.0 Ubuntu-8.10 Fedora-7.0 tested)，Windows (all) with USB portSpecification:Operating distance: 10 metersConnection: 2.4 G RFPower: 2 * AAA (not included)Color: BlackItem dimension:158 * 56 * 14 mm/ 6.2 * 2.2 * 0.6 inNet weight: 65g / 2.3ozPackage size: 22 * 12.5 * 3.4 cm/ 8.7 * 4.9 * 1.3 inPackage weight: 140 g / 4.9 ozPackage contents: 1 * Mini keyboard1 * USB dongle1 * User manual1 * USB extending cable