1. Transmission range: 10 meters
2. Function: battery display, call function, support music
3. Bluetooth protocol: 5.2
4. Channel: Stereo
5. Usage: In-ear
6. Whether single or double ear: bilateral stereo
7. Talk time: 3-5h
8. Headphone battery capacity: 50mAh
9. Battery capacity of charging compartment: 2200mAh
10. Speaker specifications: y13 brass ring speaker
