ACME 640 Double dog whistle

Length 9 cm
Frequency roll whistle from 3150 -3500 and bowl whistle up to 4000 HZ.
No affected by weather.
NO 640

Double dog whistle with a strong vibration whistle and a high tone whistle in one. Ideal for example for hunting training or other dog sports where the dog has to receive commands from a long distance. Mouthpiece with rim to better hold the whistle in the mouth. Whistles are flipped to allow a quick change from high tone to vibrating whistle and vice versa with a simple twist. Includes leather strap. Weather resistant material.