HOCO mini wireless headset

1. Material: ABS
2. Size: L24×W16×H23mm; weight: 3g
3. Bluetooth version: 5.0; Bluetooth chip: blue trum 5335B
4. Battery capacity: 40mAh; charging time: about 50 minutes
5. Talk/music time: 4 hours; standby time: 100 hours
6. Speaker: 8mm
7.Voice prompt switch?When not connected, double-click the multi-function button and there will be a beep