Product information:
Transmission range: 10 meters
Function: Power display, call function, voice control, music support, multi-point connection
Bluetooth protocol 5.0
Channel: Stereo
How to use: earplug type
Whether single or double ears: bilateral stereo
Mold type: private mold
Chip type: Jerry

Note: The product is packaged in Chinese and has a Chinese instruction manual

Package:
Headphone x1