Product Overview
1. Ergonomic design, comfortable to wear. 
2. Adopt skin-friendly big earmuffs, breathable and not stuffy ears, soft to wear. 
3. Driver diameter: 50mm 
4. Chipset: JL6955F BT5.3 version 
5. Support protocols: AVRCP1.4, A2DP1.2, HFP1.6, HSP1.2 
6. Audio decoding: WMA, APE, FLAC, AAC, M4A, WAV, AIF, AIFC 
7. Bluetooth distance: 10m 
8. Frequency: 20Hz-20KHz 
9. Microphone sensitivity: -38+/-3DB 
10. Sensitivity: 101+/-3DB 
11. Impedance: 32 ohms 
12. Frequency response range: 20-15KHZ 
13. Battery capacity: 1000mAH 
14. Playing time: 10 hours 
15. Audio delay: 45mS 
16. Charging time: about 2 hours