1, DIGITAL MUSIC SPEAKER WITH BUILT IN FM RADIO& SD CARD reader 2, Amazing sound effect 3, USB/SD/MMC ... data:Support audio format decoding of MPEG-1, SB/SD Micro Music System with FM radio MPEG- ... programs, in the collection bag Support USB and SD card multimedia playbackSupport play MP3, WAV, WMA audio ... compression files from U disk and SD card, high performance decoder and AD/DA conversion ...