1. Feedforward/feedback two-way microphone, HD calls, speaking and listening clearly
2. Ear-hook design, not in the ear, no pain when worn for a long time, stable and not easy to fall off
3. Bluetooth 5.3 technology, smooth and stable transmission, stronger anti-interference, and longer battery life for listening to music.
4. Directional sound transmission technology, built-in anti-leakage filter to protect privacy
5. Equipped with a composite driver + a bowl-coated high-sensitivity moving coil unit to present the details of every sound line, and the sound quality is even more significantly improved during exercise
6. No deformation when bent, automatic rebound fit
7. Fully enclosed outer structure, IPX5 waterproof, safe and unrestricted use

Parameter:
1. Bluetooth solution: Bluetooth V5.3
2. Speaker: 13cm copper ring speaker (obvious bass effect)
3. Chip: Bluetrum
4. Listening time: 10 -12 hours
5. Charging time: about 1-2 hours
6. Communication distance: 10-15 meters without obstacles
7. Charging compartment interface: type-c
8. Headphone battery capacity: 90 mAh
9. Bare metal weight: 8.6 grams
10. Color box size: 80 x 90 x 22 MM

Packing list: earphones + charging cable + Chinese and English instructions