1.custom LCD advertising machine 2.easy use,durable,USB auto update, ... ,promote, 4.CE,RoHS,SGS 42 inch LCD advertising machine (factory price, good quality, timely delivery) Main Board ... in the operation interface (Chinese, English, etc) Play log Support to automatically keep all the playing record and ... it would be better to buy this LCD advertising machine. There is no need to replace the files very ...