1, Bluetooth 5.3; chip: JL AC6983 2. Battery capacity: 350mAh for charging compartment, 30mAh for earphones 3. Use time: 4 hours; standby time 200 hours 4. Size: 53.8*44.3*21.5mm; total weight: 43g 5. Support master-slave switching, summon Sir, touch operation, do not support pop-up window, do not support long press the button to clear the pairing function
