1, Bluetooth 5.3, chip: JL AC7003
2. Battery capacity: charging case 300mAh; headset 40mAh
3. Use time: 7 hours
4. Size: 62.5*48*26mm; Total weight: 72g
5. Support ANC noise reduction, earphones support sliding to adjust the volume, support one-to-two, master-slave switching, summon Siri, etc