1. Bluetooth version: 5.0
2. Transmission distance: about 10 meters
3. Standby time: about 140H
4. Talk time: about 7H
5. Music playing time: about 7H
6. Battery capacity: 170mAh
7. Intelligent noise reduction with dual microphones, effectively filtering environmental noise
8. Using elastic soft rubber material, it is comfortable to wear for a long time
9. The angle can be adjusted to meet different wearing habits
10. Support IOS system and a few Android systems support real-time battery display
11. Size: 103x27x77mm.