EQ9 Duke true wireless BT headset

1, Bluetooth 5.3, chip: JL AC6973 2. Battery capacity: charging case 300mAh; headset 40mAh 3. Use time: 7 hours 4. Size: 62.5*48*26mm; Total weight: 72g 5. Support sliding on the headset handle to adjust the volume, master-slave switching, summoning Siri, etc