Hallmark Fox 40 Whistle

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Hallmark Fox 40 Whistle
Frank's Great Outdoors | Hallmark

Availability: Out of stock



Sonic science perfects the whistle. Patented design eliminates the pea (cork ball)normally needed to produce a trill. Instead, 3 harmonically - turned air chambers createa wave energy phenomenon called a beat. As a result, the Fox 40 produces an extremely loud, highly penetrating trill. And because there's no pea to stick and impede sound, you can't overblow a Fox 40