**• Material: ABS+Fabric
**• Transmission distance:10 meters
**• Support handsfree function
**• Frequency range:180Hz-20KHz
**• S/N ratio:≥80dB
**• Speaker unit: diameter 40mm, inner magnetic **10W=5Wx2
**• Battery: Built-in Polymer Lithium-ion battery, **2000mAh
**• Charging voltage: 5V / 0.5A
**• Charging time:3~4 hours
**• Working time:6~8 hours
**• Product Size: 173x72x72mm
**• Weight: 300g
**• Color: Grey,Black