Dog Whistle 2 (Golden) is the easiest way to try to retriever your dog.
Dog Whistle 2 generates frequencies from 1000 up to 24000 Hz if equipped with HD audio .
Try Dog Whistle 2 to coach your dog with different frequencies for each command.
Just download the Dog Whistle 2 app and tap on the whistle and enjoy!
... and rate Dog Whistle 2 if you like it :-)