LCD Advertising Player Key Functions 1. USB update: update content of the memory card or build-in memory simply by inserting an USB flash drive 2. Timer: the player turns on/off at the same time everyday according to your setting 3. Function keys on the player can be disabled or enabl

Key Function 1. Upgrade contents of the memory card (or Built-in memory) by simply inserting an USB flash drive 2. Timer function: the player turns on/off at the same time everyday according to your setting 3. Function keys on the player can be disabled or enabled Main Function