Bluetooth, microphone                                                                                                   
Power output: 2.0W
SNR: ≥95±2dB
Speakers: D36mm(200HZ-20KHZ)
Lithium polymer battery: 400mAh (DC5V)
Dimension: D72.26* H104.8 (MM), single weight: 136g
Material: ABS case+Metal Net-cover                                                                                                      
Certificate of design patent no: ZL 2012 3 0225002.2 
Available license: CE, FCC, RoHS, BQB, Design patent