... WinCE/Linux WiFi, Bluetooth, LAN, GPS optional USB, RS232, AV in Support Headrest Mounting 8" Vehicle Tracking System WinCE/Linux, WiFi, Bluetooth, LAN, GPS optional ... 146.5 x 37.5mmWeight: 662gOptional:Hearest802.11 b/g Wifi (built-in)GPS (P/S2) (external serial port)Bluetooth ( ... to RS232DC adapterCD driveBracket 8" Vehicle Tracking System WinCE/Linux, WiFi, Bluetooth, LAN, GPS optional, AV in