☛ Great training app for your pet!
☛ Train your dog to stop barking!
☛ Stop your neighbor dog barking!
For more information on how dog whistle ultrasound work, see this Wikipedia article: http://en.wikipedia.org/wiki/Dog_whistle
++ Besides a dog whistle, customers have reported using it as an anti barking, cat whistle, anti-mosquito device, simple hearing test and a tool to annoy others with its high frequency pitch.