It provides soft illumination with a 180 degree viewing radius that is visible over one mile. This is a lighting system so advanced that it is guaranteed. A crystal and batteries for a lifetime of use. The Morwhistle Injection molded with a completely new roller design that enables the call to truly blow wet. This whistle produces a variety of duck calls, such as multiple Pintail tones and various Teal sounds from sitting on the water calls to a louder tone to attract flying birds.
Callers can vary the sound by adjusting the slide tuner to the sound they prefer to hear.