**• Material: ABS+Fabric
**• Bluetooth version: CSR4.0
**• Transmission distance:10 meters
**• Support handsfree function
**• S/N ratio:≥80dB
**• Speaker unit: diameter 50mm, inner magnetic **24W=12Wx2 with DSP
**• Battery: Built-in lithium battery, 12V/4000mAh
**• Charging voltage: 5V / 1A
**• Charging time:3~4 hours
**• Working time:6~8 hours
**• Product Size: 231x151x65mm
**• Weight: 900g
**• Color: Grey,Black