Lightweight, affordable and handheld, this device has been used both by trainers and casual civilians who are easily frightened by barking dogs.
In my case, I know a girl who really dislikes stray dogs, so she decided to purchase one of these in order to protect herself from from aggressive and dangerous stray dogs.
It is designed to fit anywhere and to rest in your hand nicely. It is audible to dogs only and it will cause them no harm. Although I heard that it has an impressive reach, I haven’t witnessed its effectiveness, therefore, I placed it behind first two devices on the list.
Still, I did a little research and found out that it has lots of positive reviews. This appears to be one good-looking, handy and effective device that is quite simple to use. A perfect tool for a peoples who prefers to stay away from nervous animals.