Stereo Bluetooth V4.1 sport music in-ear headphones
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
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