Description:
Unique in-ear design guarantee earphones closely fit to ears and will not fall off when you are working out. Meanwhile， audio performance has improved greatly.

Main Features:
- Waterproof and sweat resistant， no matter sweating in gym or running in rainy day， it will be with you.
- NFC technology， isolate noise and let you immerse yourself in the music.
- Wireless earphones， free from wired.
- With drive-by-wire design， all in your hands.

Specification:
Bluetooth: V4.1
Bluetooth transmission distance: 10m
Battery: 45mAh Li-ion battery
Talking time: 4h
Standby time: 100h
Charging time: 1h
Cable length: 0.6m
Impedance: 32 ohm
Frequency: 20 - 20KHz 0.083 Package weight: 0.11 kg
Package Size(L x W x H): 11.00 x 4.00 x 17.00 cm / 4.33 x 1.57 x 6.69 inches Package Contents: 1 x Earphones， 1 x English User Manual， 1 x USB Cable， 4 x Ear Hook， 2 x Earbud