Cobra Stinger 2

Stimulate involuntary muscle movements if hit in the right spots. Customers have referred to this item as a hand-held T.E.N.S. unit. It can stimulate involuntary muscle movements if hit in the right spots. 2 setting switch: CONSTANT/ high or PULSE / BLINKING = low. Contact both spikes on the skin for a tingling / pulsating / pins & needles / bee sting sensation. 2 AA batteries not included. WARNING: Do NOT use this item on anyone that has a pacemaker, heart condition or any other medical condition. Do NOT use over heart area. Use caution in using this item around metal implants & piercing.