... 1.perfect sound/delicate design 2.High sensitive FM 3.SDcard slot 4.Rechargeable battery LCD display ... ,Support SD card, and FM radio , U-disk and read-write SD card ... one button control all function2. Support SD card, and FM radio , support MP3/WMA / WAV /APE/FLAC ... transfer: AUX in 3.5mm,USB ,SD card& FM radioPower: USB, Removable Lithium Battery (Nokia BL-5C, ...