1. Bluetooth 5.4; Chip: JLAC6983D2
2. Battery capacity: Charging case 320mAh; headset 40mAh
3. Usage time: 7 hours; Standby time: 180 hours
4. Material: ABS;Size: 58 * 49 * 25mm; Total weight: 45.5g
5. Supports master-slave switching, summoning Siri, and displaying battery level in the charging case