... 3.USB,SD,3.5MM Jack 4.Dual speaker 5.32 wireless games 7 inch tft headrest monitor with usb sdModel No.: S ... poles for different size (12, 12.5, 12.7, 13.8, 14, 16mm) to meet different cars.. Available color: Black, ... for the front panel , do not need to send full headrest back, which can save the shipping cost.Packing:2pcs/gift ... 31CM; G.W: 21kgs; V.W: 24kgs. 7 inch tft headrest monitor with usb sd