... /off,prev,next,play,pause,volume+/-3.Built-in MP3 player,can play MP3 files in SD/MMC card,can also read USB ... audio interface to play music,like the digital products as MP3,MP4,music mobile,laptop,iPod.5.with remote controller and ... ,DC adapter.9.Support to switch directly between external signal/Mp3(USB Flash Drive/SD card)10.Material: wooden11.Speaker power ...