Neck Massage Device, Smart Neck Massager, USB Charging, Five Function Modes, 16 Intensity Levels

A slight stinging sensation when wearing a massager is a normal phenomenon, the first time customers can rest assured. After wearing, it is recommended to adjust from 2-5 gears for the first time. Products have multiple modes and gears, each mode 15 minutes automatically end, continue to use need to re-press the boot button.
When using, please close to the skin, dryness and discomfort can be dipped in water or moisturizers to apply, take it off in time when it is not suitable. Power depletion, please use the included cable to charge, to avoid affecting the battery charging, the first time you need to run out of charging again, full about 3-4 hours. Please follow the instructions to ensure safe and effective use.