The choice of professionals. Steady frequency regardless of loud or soft blowing.

Medium intensity whistle, an excellent multi-tool with a sound that is very close to human hearing. This special whistle maintains its frequency regardless of how hard you blow.

Your dog will always know it is his whistle. Known as the Pro-Trialler, it causes less confusion for your dog, especially over long distances or if you blow hard when your dog becomes disobedient or strays off course during a hunt.

This whistle is particularly effective over long distances and works very well with Pointers, Setters, Retrievers, Labradors, and most Terriers. An excellent whistle for dogs that are more challenging to train.