It use different sonic sounds of high frequency. Dogs can hear sound at higher frequencies than humans can. A Dog Whistle exploits this by emitting a high frequency sound to call to a dog. Many dog whistles emit sound in the upper audible range of humans, but some, such as the silent whistle, emit ultrasound at a frequency in the range 18–22 kHz.
Download the .apk setup package of Dog Whistle 1.02 that is free and check out users' reviews on Droid Informer. The file size is 4 MB and the app is developed for Android 2.3 and higher. This application has been checked for viruses and it has been found completely secure. Dog Whistle has been originally developed by remind4u2 and it is included in the Entertainment category.
The app has been downloaded and set up by over 100K users and the most recent update is dated Aug 3, 2016. This application has been rated 2.8 on Google Play. Dog Whistle shows ads.
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