Product information:

Bluetooth protocol: 4.2
Channel: Mono
Usage: Hanging ear type
Whether single or double ears: Unilateral hands-free
Color: Mysterious black belt warehouse, noble red belt warehouse, technology silver belt warehouse, diamond carved blue belt warehouse, skin-friendly belt warehouse, mysterious black, noble red, technology silver, diamond-carved blue, skin-friendly, separate charging warehouse

Packing list:
Headphone x1