Hands-free calling

*Smart-manage charging

*Voltage:DC 5V

*Size: φ85*49mm

*Built-in Battery: 500mA Lithium polymer

*Charging time: 3-4 H

*Operating time: 5 H

*Bluetooth Version: 2.1+EDR

*Distance: within 10 meters                                              

*Using CSR bluetooth Chip                                          

*Available color:blue,green, white, black,red