1. Bluetooth version: 6.0, chip: JL AC6983 2. Battery capacity: 300mAh charging case, 30mAh headset 3. Use time: 4 hours 4. Size: 50*46.2*21mm; Total weight: 41.5g 5. Support master-slave switching, up and down song switching, summoning Siri, sliding tuning, pressure-sensitive operation and other functions
