1. Bluetooth version: 5.3 Jerry 7003
2. Channel system: stereo (dual channel)
3. Battery capacity: 55 mAh
4. Drive unit: 9mm
5. Product weight: 14.2g
6. Charging time: 1 hour
7. Talk time: 9 hours
8. Playback time: 8 hours
10. Product size: 56*12*8.5mm (Bluetooth control)
11. Supported protocols: HSP/HFP/A2DP/AVRCP
12. Input charging standard: DC 5V 300MA
13. Bluetooth operating frequency: 2.400GHz-2.480GHz
14. Call distance: less than 1M
15. Transmission distance: 10M
16 Voice prompt: support
17. Multipoint connection: support
18. Method of use: in the ear
19. Instructions: Chinese and English
20. Included accessories: USB charging cable, manual, earplug size, cable clip, cable socket
