Main Features:- Bluetooth V4.1 connection ensures HiFi sound quality and stable performance
- CVC 6.0 noise reduction technology, perfect music enjoyment and clear communication
- Sweat-proof design for exercise
- Support hands-free call and voice prompt
- Compatible with all Bluetooth enabled mobile devices
- Ergonomic design, hook style and lightweight body, comfortable to wear

Specifications:
Bluetooth version: V4.1
Transmission distance: 10m
Power supply: rechargeable 65mAh Li-ion battery
Standby time: 180h
Talk time: 4.5h
Input: DC 5V 200mA
Charging time: 2h
Protocol: HFP / HSP / A2DP / AVRCP / APTX
Impedance: 35 ohm
Frequency: 2.402 - 2.480GHz
0.080 Package weight: 0.107 kg
Package Size(L x W x H): 19.00 x 9.50 x 4.00 cm / 7.48 x 3.74 x 1.57 inches Package Contents: 1 x Earphone, 1 x Pouch, 1 x USB Cable, 4 x Ear Cap, 1 x Chinese and English User Manual