Product information:
Transmission range: 5 meters
Function: Power display, call function, NFC function, voice control, music support, multi-point connection
Bluetooth protocol: 2.0
Channel: Stereo
How to use: Earplug type
Color: black steel belt, green and black silicone, red and black silicone, silver steel belt, gold steel belt
Mold type: public mold
Chip type: Zhongke Lanxun
Life time: 6 (hours)

Packing:
Silicone Smart Watch X1