Features: 1. Bluetooth 5.1, widely compatible with a variety of Bluetooth devices 2. CVC8.0 intelligent noise reduction, HD calling 3. Touch operation, can answer/reject/hang up calls, play/pause music and other functions 4. Use with a lavalier magnetic charging box for long-lasting battery life 5. Bluetooth automatic reconnection 6. Comfortable to wear
Product Specifications: 1. Chip model: QCC 2. Bluetooth version: V5.1 3. Communication distance: 10m 4. Transmission frequency: Class2 5. Charging voltage: DC 5V 6. Working voltage: 3.7V 7. Battery specification: 35mAh (earphone)/135mAh (battery box) 8. Charging time: about 2 hours 9. Listening time: about 5 hours 10. Talk time: about 5 hours 11. Standby time: about 180 hours