1.Hands-free call, built-in Mic.
2.Built-in USB, easy to recharge
3.With hanger,ideal for outdoor sports

Connectivity: ................................................Bluetooth V3.0+EDR
Wireless Range: ........................................................ 10m/33feet
Battery:  ...............................300mAh, up to 3 hours music time
Battery Charging time: .................. ...............................2-3hours
Plug: .......................................................................................... USB
Case finishing: .................. Optional solid or rubberized finish
Color:  .........................................Black, white, other OEM colors
Size: ............................................................................12×4.7×2cm
Weight: ......................................................................................69g