[BT + 2.4G Wireless Dual Mode Mini Keyboard]Support BT 4.2 about and 2.4GHz RF connections: just pair the BT keyboard with your computer and ready for use immediately.Fn+Win hen switch to BT mode.Press Fn+Ctrl Switch to 2.4G. [7 Color LED Backlight Mini Keyboard]Support white color light and 7 color led backligt,offer a nice user experience in dark light environment,also brighless can be adjusted. [Multi OS & Device Compatible]Support Windows,Andorid IOS 13.3.1 and Linux OS,perfect for devices such Laptop PC,Desktop PC,Pad,Projecto,Google/Android TV Box,HTPC/ etc [Multi OS & Device Compatible]SupportWindows 2000.XP. Vista.Windows .Windows 7 Android,perfect for devices such PC,Pad,Projector,PS3,Google/Android TV Box,HTPC/ etc size: about 146 x 113mm Material: ABS colour: black Package Contents: 1 x Mini Wireless Keyboard with Touchpad Only the above package content,other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.