upport USB, SD, MMC cards for playback
Support FAT12, FAT16 file system
Support MP1 Layer3, MP2 Layer3, MP3 Layer3 version of the song
Supports 8-448kbps in the MP3 songs
Support AUX (for connecting external audio, and can be remote control or buttons to
control external audio volume)
Support from the direct signal switch, USB / SD card directly to switch, and external
audio volume control
With digital display
With FM (with FM radio, can automatically scan, storage units)
