[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 113mmMaterial: ABScolour: 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.