The safety switch is located on the side of the stun gun and has three positions: off, flashlight only and stun gun only. The activating switch is the round, red button just below the flashlight.

This stun gun has a built-in nickel-cadmium rechargeable battery and comes with an easy to use integrated charger. Simply plug the charger into the stun gun and then into an electrical outlet.

The LED charge light will turn on. The stun gun may have a small charge when it arrives but you will need to charge it for 4 hours. After the initial charge and long periods of inactivity we recommend recharging the stun gun for 2 hours. Dimensions 5 1/8" x 1 3/8" x 1 1/8"
 

You need to touch an attacker with a stun gun for it to be effective.  The best places are neck, shoulder, abdomen and groin.
 

A half second application can cause some pain. A one or two second dose will cause muscle spasms and confusion.
 

A 3 to 5 second application will cause the loss of balance and muscle control, confusion and disorientation.
 

Stun guns will go through a 1/2 inch of clothing.
 

There is no shock back to you even if the attacker is touching you.