1. Bluetooth V5.0+EDR chip, with faster transmission speed and longer transmission distance.
2. In-ear fit auricle design, wearing the ear for a long time does not cause pain.
3. Earphone battery capacity: 50mAh.
4. Charging box battery capacity: 650mAh.
5. Transmission range: 10m
6. Charging voltage: 5V
7. Charging time: about 2 hours
8. Play time: 4 hours
9. Talk time: 4 hours
10. Standby time: 400 hours
11. Supporting protocols: A2DP1.3, HFP1.7, HSP1.2, AVRCP1.6