1. Bluetooth 5.3; Chip: JL AC7003
2. Battery capacity: 130mAh; Charging time: approximately 2 hours
3. Usage time: 20 hours; Standby time: 350 hours
4. Size: The total length of the earphones is 88cm; Weight: 20.8g
5. Support for both Chinese and English prompt tones: double-click the multifunction key in unpaired state
