mini portable USB MP3 FM speaker

 Funtions:

 1)Output:RMS:4W(2W+2W)THD=10%

 2) Requency response: 150-18000HZ

 3)Signal and Noise ratio for power amplifier:

Packing:

  MEAS:49.5*47.1*33CM

  QTY/CTN: 60PCS/CTN

  GW/NW: 22/21KG