1,Big loud sound,Big battery,Long time play muisc 2,With FM radio 3,Small shape,easy to carry 4,Many colors for optional 1,Support Micro SD card for playing music.2,Support earphone output,AUX input 3,Build-in stereo FM radio4,Line-in(AUX: MP3, MP4, iPhone,PC, Laptop)5,Output: RMS-3W, THD=10% ;Frequency:150HZ-18000HZ(±3dB);Power supply:5V\600MA,AC power adapter,USB cable; Signal to noise ratio of ...