THÔNG SÔ SẢN PHẨMInput Power: 5V-1AOutput: 2*10WSpeaker: 3*10WFrequency: 80Hz - 18KHzBt Version: 5.0S/n: 80dBFm Frequency: 87.5 - 108MHzBatterry: 3.7V - 18650 - 3000 mAhSize: 346.6x135x168.3 mm