New arrival,lightweight,easy to wearing, simply the best!

Specifications:
1) Bluetooth protocol: CSR V2.0
2) Operation range: 10m (33 feet)
3) Talk time: up to 7 hours
4) Standby time: up to 240 hours
5) Charging time: about 2 hours
6) Battery: Li-polymer battery, 130mAh
7) Charging: Put out: DC5.35+0.1V Put in: 380-480mA
8) Dimensions: 40mm x 18mm x 7.5mm
9) Weight: 8.0g
10) Supports headset and hand-free profiles
11) Colors: black, black with silver

More details,welcome to contact us any time!