Portable DVD Players with Headrest & Stanchion Mounts It is designed to stanchion ... dock, supports wireless headphones 9" digital screen (Dual screens or Single screen) 1, Audio/Video input & output,DVD/USB/SD Output 2, Region Code ... -in-1 Card Reader and USB port. 8, Built-in dual speakers with power magnifier, which support surround sound 9, TV ...