... display, stands for display, floor standing digital display, free standing lcd advertising display Key Function1.Upgrade contents of the memory card ... network (3G, WIFI, Rj45) optional Main Function1.Play mp4 advertising video, mp3 music and digital photos; Built-in 42 inch ... movement, hence more durable and suitable for long-hour advertising playing 6.Touch screen for optional 7.Theft-protection device ...