Keyboard Air Mouse Remote Control for Sony Android TV XBR-X900C XBR-X850C XBR-X830C XBR-XBR XBR-X810C XBR-W850C XBR-W800C XBR-X910C XBR-X940C XBR-X930C It works as a mouse, which converts your space movement in the air into an accurate displacement on the screen. It works as a keyboard, and you can use it portable to replace your usb keyboard. It works as a remote, which you can program and learn some important keys from your TV remote. It is designed with some universal function keys, which work for most TV boxes, HTPC. (it is not granted to work for all though because some systems are customized by the vendor) Support System: 1. Google/ Android OS 2. Mac OS 3. Linux OS 4. Windows