Reader: u-disk format: MP3/WMA/FM
.FM FREQUENCY RANGE-----87.5MHz-108MH
mobile speaker ,mini speaker .sellphone speaker

1. Input voltage DC5V  500mA

2. Frequency response: 20Hz~20KHz
      Output power: 2W   4W 
      Harmonic distortion: ≤0.05%  4W  1KHz
       SNR: ≥85dB

Speaker: 3inch*1   1inch*1
3.Reader: u-disk format:  MP3/WMA/FM

4.FM FREQUENCY RANGE-----87.5MHz—108MH 

mobile speaker ,mini speaker .sellphone speaker