Hoco EW35 Sonido true wireless BT headset

1. Bluetooth 5.3; Chip: JL AC6983 2. Battery capacity: 250mAh in charging case; Headset 30mAh 3. Service time: 4 hours; Standby time: 150 hours 4. Size: 51 * 51 * 22.1mm; Weight: 35.6g 5. Support master-slave switching and calling Siri