Herm Sprenger Silent Dog Whistle

Ideal for long distance, tracking and training work with your dog. This whistle is nearly inaudible for humans yet clearly audible to Dogs. With a range of 15-400m, it has a permanent same pitch which is set by the locking nut on the adjustable screw. It features a plastic sleeve that protects the adjustment and is made from highly polished Nickel plated Brass. Weight 0.03 kg Dimensions 9 , 5 , 1 cm