Product information:
Transmission range: 20 meters

Function: battery display, call function, voice control, multi-point connection
Bluetooth protocol: 5.1
Channel: stereo
How to use: earplug style
Single or dual ear: bilateral stereo
Color: black, pink, red
Mold type: private mold
Chip type: Lanxun
Life time: 120 (hours)

Packing list:

Plastic wireless earphones*1