1.Bluetooth speaker: V4.1  compatible with 2.1/2.0/1.2 version Bluetooth
Stereo, class 2 standard and supports A2DP and AVRCP models
2.Rated power: 3W*2
3.Frequency response: 80Hz to 20KHz
4.S/N ratio: 76dB
5.Audio input: mini USB jack
6.Output: 3.7V600mA Li-ion battery
7.Product size： 175*175*50 (mm) 
8)BQB CE FCC ROHS