1. Bluetooth protocol: V5.4
2. Transmission range: 10m
3. Frequency range: 2.402-2.480GHZ
4. Withstand power: 20mW
5. Battery capacity: 400mAh
6. Charging time: 2.5h
7. Standby time: 180h
8. Endurance time: 38h
9. Support active noise reduction, reject external noise interference
10. Support hands-free calling function, built-in high-sensitivity microphone
11. Game mode, zero sense of delay, audio and video synchronization
12. High-resolution sound quality, upgraded independent audio cavity, restore HIFI sound quality
13. Built-in rechargeable lithium battery, iOS system mobile phone can display the headphone power in real time
14. Ergonomic design, rotatable axis, comfortable to wear and foldable for easy storage