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.
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\nWith a range of 15-400m, it has a permanent same pitch which is set by the locking nut on the adjustable screw.
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\nIt features a plastic sleeve that protects the adjustment and is made from highly polished Nickel plated Brass.
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\nWeight 0.03 kg
\nDimensions 9 , 5 , 1 cm