In terms of selecting stun guns, you will find a wide selection from which you could select. There are those that seek out all practical purposes just as a cellphone or common flashlight as well as those that seem to be an actual stun gun.
Regardless of which kind you pick out, you must figure out how to make use of it and ensure that you’re always carrying it if you are out and about. It won’t do you any good to have a stun gun if you don’t have it along and you’re attacked. Make sure that you ensure that it stays charged too.