Product Description The Acme Silent Dog Whistle invented in 1935 produces ultra high frequencies in the range of 5800Hz. To 12400Hz. This is a unique item used in training animals. Every individual whistle is tested for guaranteed sound and reliability.
Customer Reviews:
Acme whistleFebruary 17, 2008 Gulogirl 0 out of 12 found this review helpful
Don't know about how it works on dogs, but it works great when training a wolverine!