1.Meterial: aluminum alloy
2.Function: ISSC bluetooth 3.0+USB charge+AUX in
3.Output power: 3W
4.Sensitivity: 600mV
5.Frequency response: 80HZ - 18KHZ
6.SNR:> 70db
7.Distortion:< 0.05%
8.Bluetooth sensitivity: -90dBm
9.Built-in li-ion polymer 450mAh battery
10.Run time: up to 5 hours
11.Battery charge: about 2.5 hours
12.Remote operation:10 meters(without obstacle)
13.With extral 80cm micro USB cable+3.5mm audio cable