1. Bluetooth version: V5.3 (AD6973D4)
2. Supported protocols: HSP, HFP, A2DP, AVRCP
3. Channel system: Stereo
4. Battery capacity: 35mAHx2 (without protection board, headphone board lithium battery protection IC)
5. Charging case battery capacity: 3.7v/300mAh (with protection board)
6. Driver unit: Diameter 13mm
7. Charging time: 1h
8. Talk time: 7h
9. Play time: 6h
10. Standby time: 200H
11. Headphone + charging case usage time (80% volume): 20H
12. Sensitivity: 93+/-3DB
13. Speaker impedance: 16 Ohm
14. Input charging standard: DC 5V
15. Bluetooth operating frequency: 2.402G-2.480G
16. Transmission distance: 10M max
17. Voice prompt: Supported
18. Wearing method: Semi-in-ear
19. Interface: TYPE-C
20. Waterproof level: IPX6
21. Packing list:
Earphone x 1
USB charging cable x 1
Instruction manual x 1