Main Features:
- Bluetooth V4.1， compatible with most devices and high speed connection
- Wireless connection， stereo HiFi earphones， suit for outdoor sports
- CVC noise reduction technology， isolated from the world and ensure clear calls
- Sweat and water proof
- Magnetic adsorption design， hang on the neck and not easy to fall off

Specification:
Bluetooth: V4.1
Transmission range: 1m
Battery: 150mAh Li-ion
Working time: 6h
Charging time: 2h
Impedance: 32 ohm 0.133 Package weight: 0.163 kg
Package Size(L x W x H): 12.00 x 16.50 x 4.00 cm / 4.72 x 6.5 x 1.57 inches Package Contents: 1 x Earphones， 1 x English User Manual， 4 x Earbud， 1 x USB Cable