... 3,FM radio,Strong bass4.Line-in Mobile/Cell Phone, MP3, MP4, Computer/ Notebook/ Laptop and other kinds of Audio series ... :150HZ-18000HZ(±3dB);Power supply:5V\300MA,AC power adapter,USB cable; Signal to noise ratio of power amplifier: ≥80dB6,Built ... -ion battery;7,Color: Black,Red,Silver,Blue,Green Android MP3 speaker