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Multi-function wireless bluetooth speaker
*supports for A2DPV1.2 and AVRCPV                                                                                                                   *Work with all sound source with 3.5 audio interface 
*Transmission Range 15 Meters. 
1).Inbuilt lithium battery with 8 hours working time
2)Bluetooth version: V2.0
3)Amplifier power output: 3W 
4)Frequency Response:  180Hz - 20 kHz 
5)Input Impendence: 4 Ohms
6)S/N ratio: ≥80dB
7)Power input: 5V(USB) or battery
8)speaker dimension:57mm
9)Size: 75.5*75.5*75mm
10)Charging method By usb cable 
11)Battery Lithium battery with 800ma