Bluetooth handsfree Hoco E57 black

Material: ABS
Size: L71×W26×H16 mm
Net weight: 10 g
Bluetooth 5.0, chip: BK 3266
Battery capacity: 170 mAh
Charging time: about 1.5 hours
Talk/music time: 10 hours
Standby time: 200 hours
Voice prompt switch: When not connected, double-click the multi-function button and there will be a beep