1. Bluetooth version: 5.0, chip: Jerry JL AC6963
2. Battery capacity: charging compartment 260mAh, earphone 28mAh
3. Talk/music time: 2.5 hours
4. Standby time: 120 hours
5. Support master-slave switching
6. Voice prompt tone switching: only supports English, does not support switching
7. Size: 54x45x24mm, total weight: 34g