BOROFONE BE55 Perfect wireless BT headset - black

1, Bluetooth 5.1; Chip: JL AC6976 2. Battery capacity: charging compartment 1200mAh, earphone 40mAh 3. Talk/music time: 4.5 hours; standby 200 hours 4. Size: 78*48*30mm; total weight: 78g 5. When the headset is taken out, it will automatically turn on, support master-slave switching, and call Siri 6, 1200mAh large power supply, which can be used for emergency charging of mobile phones 7. The headset has a super battery life up to 45 hours when used with a charging compartment