Dog Whistle Button

dog whistle Button (dog whistle that only dogs can hear) is a dog whistle app that works for dogs that barks, which people cannot hear but other animals can,including hound and domestic cats, and is used in their training. It was invented in 1876 by Francis Galton and is mentioned in his book Inquiries into Human Faculty and its Development, in which he describes experiments to test the range of frequencies that could be heard by various animals, such as a house cat.
your dog new tricks, no barking and better behavior!You can also use it as anti dog repellent
make a button to train your hound .

FUTURE
Dog Whistle real
Dog Whistle ringtone
a dog whistle that work in real life and only dogs can hear
dog whistle widget


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