Functional Requirements:

1, background music player

Should be able to provide a variety of background music player, DVD / MP3 player and tuner and other audio sources, requiring automatic partition playback.

2. meet the square can be linked to fire emergency broadcast. Meet the fire linkage requirements.

3. should be able to achieve automatic timing management, including regular turn on, turn off the power of the broadcast system, regularly play edited bells, ringtones or other programs.