Portable amplifier speakers Play music form USB Drive ,support MP3 format Apply PC ,Mobile phone ,MP3,and other audio Portable amplifier speakers play music form USB Drive,support MP3 formatApply PC,Mobile phone, MP3. and other audioFM radio(87.5-108MHZ)output power :3W*2Built in lithium battery (DC 5V)Signal to noise ratio :greater than 75DBFrequency response:100hz-18khz

multimdia portable radio