Bluetooth version: V4.0
Working Range Up to 10m
Working Time 10 hours
Dimension 60*60*50mm
Net Weight 230g
Speaker 45mm 
Loudspeaker Output 5w
Frequency Response 280hz-16khz
Signal to Noise 95dB
Distortion 0.5%
Battery Voltage/Capacity 820mah 
Battery Charging Voltage 5v / 0.5v
Battery Charging Time 2 hours