【實用工具app】Dog Whistle Free|最夯免費app

A digital dog whistle on the go, that's simple, easy to use and has a range of whistles that scale from 8000 Hz to 24000!

Dogs can hear frequencies that are much higher than our human ears can, so simply choose your frequency and use it to train your dog.

In addition, some of the frequencies included can be heard by humans, so you can use it as a joke on your friends, or even possibly to annoy them.

免費玩Dog Whistle Free APP玩免費

免費玩Dog Whistle Free App

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