The Acme Silent Dog Training Whistle provides an extremely high pitched, adjustable sound that dogs can hear--and that is almost inaudible to humans. Developed for hunting dogs, the training whistle...
Rescue Metal Whistle- 2 PackWhen you need rescuing, one of the easiest ways rescue crews can locate you is by sound. The Adventure Medical SOL Metal Whistle emits a 110db shriek that will bring...