Electric Neck Massager
This device uses electric current to stimulate muscles to achieve the purpose of massage. There are 6 modes in total. 15 strengths.
Please use 2 pcs AAA batteries (NOT Included);
Switch on button .;
Press ""on "" button . You will check the indicator display ""red', then change mode;
Bring a neck massager around your neck;
Press the button ""High"" until you feel an electric shock.