All  these  MP3 modules structure can be  Customized
1.Support USB 2.0 ,SD CARD
2.Music format :Mp3 ,WMA,WAV
3.4pcs button on pcb:
 MODE /MUTE/REPEAY/EQ/VOL_/CH_/PLAY/PAUSH/VOL+/CH+
4.FM frequency range:88MHz_108MHz
5.Broadcast mode:Supporting SD/MMC Card and USB disk to play music
6.With wireless remote controller
7.Break code screen:LCD display the playing time of song, FM radio channel,Volume figure.
8.Application:Ordinary audio combination,Car audio,multimedia speaker,Subwoofer, AV amplifier, ELectronic toy and so on.