1, Bluetooth 5.3; chip: JL AC6983
2. Battery capacity: charging compartment 300mAh; earphone 30mAh
3. Use time: 4 hours; Standby time: 150 hours
4. Size: 60.6*45.2*21.7mm; Weight: 57.6g
5. Support master-slave switching, up-down switching, calling Sir, binaural call, pressure-sensitive operation
6, does not support the pop-up function, does not support the wireless charging function