1. Chip: Jerry 6973D
2. Bluetooth version: V5.1
3. Frequency response range: 50Hz - 20KHz
4. Supported protocols: AVRCP/V1.6.A2DP/V1.3.HFP/V1.7/Simultaneous/LE/BR/EDR
5. Microphone MIC: Silicon microphone, -42dB
6. Use time: about 10h
7. Bluetooth transmission distance: about 10 meters
8. Charging current: 400mA
9. Signal-to-noise ratio: above 90dB
10. Headphone battery capacity: 100mAh
11. Speaker power: Rating 3mW
12. Charging time: about 1.5h
13. Charging voltage: 5V
14. Receive sensitivity (TYP): -85Db
15. Charging port: Type-C

Features:
1. Independent cavity, built-in high-fidelity full-range speakers, HIFI sound quality
2. Dual microphone intelligent noise reduction processing
3. Skin-friendly silicone, no pain to wear for a long time
4. Bluetooth 5.1 chip, stable connection, smooth operation
5. Adopt left and right split wireless design
6. Multi-function buttons, easy to operate