... Warranty 1 year Function: 7- Inch (16: 9) TFT true color LCD screen - Headrest monitor, Taxi media playerSupporting SD CF Card, Built- In stereo ... is under powering on9. Under muting model, powering off the monitor and starting up, then it would be in max volume ... . 10. SD, CF card is available (please power off the monitor firstly when you pull it down)11. Support format: MP4 ...