1. 40mm large dynamic coil, strong bass effect
2. Folding design, storage freely
3. Closed earmuffs fit both ears, intelligent noise reduction
4. Transmission range: 10 meters
5. Bluetooth protocol: 5.0
6. How to use: head-mounted
7. Charging time: about 1 hour
8. Music playback time: 6 hours
9. Function: call function, voice control, support music, multi-point connection
10. Battery capacity: 150mAh
11. Features: Intelligent noise reduction, comfortable to wear, sturdy and durable, long-lasting battery life, HIFI sound quality, 90-degree folding, button control