... factory price for 10.2" inch Roof Mount DVD player with USB,SD,MP3,MP4,Game Product Description:Features:size(option):9"-10 ... *Function:Installed on the automobile ceiling.*Blue screen:Video signal disappears, with automatic appearance of blue screen.*Main function:monitor,voice frequency ... factory price for 9''-10.2" inch Roof Mount DVD player with USB,SD,MP3,MP4,Game