... optional 4.OEM 10 inch motion sensor Digital signage board,digital ad board, signage player board, digital display board Key Function1. Upgrade contents ... can be disabledMain Function1. Play mp4 movie, mp3 music and digital photos; Built-in 10 inch TFT LCD screen, with tempered ... players, they can be turned on/off.11. LCD ratio adjustable: 16 : 9 or 4 : 3.Technical Specifications1. TFT LCD screen ...