Product information:
Transmission range: 15 meters
Function: power display, call function, NFC function, support music, multi-point connection
Bluetooth protocol: 5.1
Channel: stereo
How to use: earplug type
Whether single or double ear: Bilateral stereo
Color: cool black
Mold type: private mold
Chip type: Jerry
Life time: 120 (hours)

Packing list:
Wireless headset X1