1. Bluetooth 5.4 Chip: JL AC70032. Battery capacity: Charging case 400mAh headset 40mAh3. Usage time: 7 hours4. Size: 61 * 47 * 28mm Total weight: 49.5g5. ANC+ENC noise reduction function, support for one to two, master-slave switching, summoning Siri and other functions
