1, Bluetooth 5.1, chip: JL AC6973
2. Battery capacity: charging compartment 350mAh, earphone 30mAh
3. Talk/music time: 4 hours, 200 hours standby
4. Size: 53.8*44.3*21.5mm; Net weight: 47g
5. Support master-slave switching, call Siri, modify pairing name, touch operation, support pop-up window
6, with charging cable