Product information:
Bluetooth version: V5.2
Communication distance: 10 meters (under barrier-free environment)
Bluetooth version: cvc8.0
Single ear capacity: 50mAh
Charging bay capacity: 300mAh
Music time: about 35h (use with charging bay)
Standby time: about 55h (use with charging bay)
Charging bay size: 89.9mm*30mm
Headphone size: 22mm*1 5mm
Color: black[with flashlight], white[with flashlight], blue[with flashlight]

Packing list:
Wireless earphone x1pcs