4-in-1 function， support plays music from USB Drive/SD card， and line-in audio input
Play MP3 format music from SD/MMC card， u disk and card reader
No need to shift between card reader/SD/MMC card， speaker automatically reads the memory plug in
Automatically search and store stations under FM mode
Support remote control and panel control and LED display
Stereo sound and support select audio QC

Details:
Color LED: 12PCS
Speaker system: 4Ohms 2W
S/N ratio: >65dB
Power supply: Li-Hi battery 3.7V