Type: Active noise reduction
1. Noise Cancelling Chipset:LM5896
2. Bluetooth Chipset:CSR C300
3. Bluetooth Version:5.0
4. Bluetooth Transmission scope:≥10M
5. Bluetooth Transmission Frequency: 2.4GHz-2.48GHz
6. Protocol supported :HSP/HFP/A2DP/AVRCP
7. Drive Unit:40mm
8. Noise Cancelling Sensitivity:-20dB
9. Impedance:32Ω
10. Frequency Response:20Hz-20KHz
11. Sensitivity:100+3dB
12. Battery Capacity:500mAh
13. Playing/TalkingTime:about 32 hours
14. Charging Time:about 2.5 hours
15. Unit dimension:57mm*48mm*200mm