Specification:
Bluetooth version 5.0:
Speaker diameter: about 13mm
Transmission distance: 10 meters
Battery capacity: 40 mAh
Luggage capacity: 400 mA
Talk/music playback time: 2-4 hours
Charging time: 1-2 hours
Type C interface
Frequency: 2400.0-2483.5 MHz
Bare metal weight: only about 4g and two for about 8g
Weight of charging compartment with earphones: about 42g
Package weight: about 61g
Box weight: about 113g

Packing List:
1*Mini Bluetooth Headset
1*Charging Box
1*USB Charging Cable
1 Pair of Earplugs
1*User Manual