A versatile training tool, the Cabela's Work Whistle delivers a wide range of sounds for training dogs. This durable whistle features a pea inside its chamber, allowing you to produce varied pitches and sounds while working your dog. Simple and effective, the Cabela's Work Whistle is a great all-around dog whistle that amateurs and pros alike will find useful when working their dogs. Versatile dog training tool Pea in chamber allows whistle to produce varied sounds and pitches Great all-around training tool