I’m sure you’ve seen a few terrible situations wherein a dog walking with his owner in the park is being attacked by another dog.
Perhaps, you and your dog have been in this situation.
If only you had a handy animal deterrent or dog repeller in your pocket, things could’ve been handled easily - less injuries on your dog.
Ultrasonic animal repellers have been really useful in breaking dog fights and even preventing it from happening.
The sound frequency (ultrasonic) produced by these dog repellers effectively deters dogs from any unwanted behaviours (including nuisance barking) - the sound is almost inaudible to human ears, this is a harmless sound frequency that dogs are very responsive to.