1. Bluetooth 5.3
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 »
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