Product specifications:
1. Bluetooth version: 5.0.
2. Headphone/charge box charging current: The adapter is AC 220V, DC 5.5V-500mAh/s, battery 3.7V.
3. Headphone battery capacity: 45mAh.
4. Charge box battery capacity: 3500mAh.
5. The charging box can charge the headset: 20 times.
6. Play music time: 5 hours
7. Standby time: 300 hours.
8. Talk time: 6 hours.
9. Charging box charging time: about 45 minutes.
10. Charging time of the headset in the charging box: about 30 minutes.