Wireless Headsets Bluetooth Headphones with Microphone

Description:
Product Name: wireless Bluetooth headsets
Transmission distance: 10m
Battery capacity: 400mAh
Horn diameter: 40mm
Play time: about 10H (100% volume) , 20 hours (50% volume)
Standard Time: > 720H
Charging time: 2-3H
Built-in microphone: Yes
TF card: support
Charging port: Type-C
Audio I/O interface: support