1. Black, Navy Blue
2. Bluetooth 5.3; chip: JL AC7003
3. Battery capacity: 200mAh; Charging time: about 2 hours
4. Use time: 30 hours; Standby time: 350 hours
5. Size: the total length of the earphones is 85cm; Weight: 26.5g
6. Toggle switch button, more convenient to operate
7. Support prompt tone in Chinese and English: double click the multifunction key when not paired
