Feature: 92 keys, 2.4GHz wireless Keyboard with Touchpad. Built-in high sensitive smart touchpad with 360-degree flip design. Larger touchpad, unique double mouse button around design, operation more convenient Mini QWERTY keyboard with multimedia control keys and PC gaming control keys. The Ergonomic handheld design is easy to carry and operate. Perfect for Desktoop,PC, Andriod TV Box,Xbox360/PS3, Car TV, HTPC/IPTV, etc. Specification: Item Name: Mini Wireless Keyboard Frequency:2.4Ghz Operation Range:10M(Max), without signal disturbance and no direction limit Voltage:3.3V Color:Black Backlit:No Support Battery:2*AAA(Not Included) Size:146*97*19mm Compatible: Windows 7,8,10,2000, XP, Vista ,Windows CE, Linux(Debian-3.1, Redhat-9.0 Ubuntu-8.10 Fedora-7.0 tested) Package: 1 x 2.4G Wireless Mini Keyboard With Touchpad 1 x USB Receiver 1 x User Manual