Dog Whistle is an app Can be used to train your dog.

Mazing Dog Whistle app! Use it to train your dog! Drive your friends up the wall while they wonder what that high pitched noise is.is possible with Dog Whistle!

Dog Whistle is an app that plays a high pitched sound that dogs and other animals can hear. Can be used to train your dog. It is a high pitch frequency generator app that is handy to have with you at all times.