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