There are electronic dog whistles that whistle, but if you record your own voice calling your dog home with a phrase and it's name in a frequency that they come too above human hearing by translating your voice up too the range of dog whistle hearing range then they will also hear your words which would help you call your pet home much faster and it would recognize you and only you. You could add any phrase they are used too hearing. What ever is their favorite phrase from you. They also would come too you only and not too other confusing places a whistle sound might seem to be coming from bouncing around off objects confusing your pet.
Reward: One for our dog...















