If two reed systems produce a fuller and more realistic prey-in-distress sound, how about adding a third reed system to pack even more punch. Unlike anything else on the market, Knight & Hale's Triple Dawg's three reed system works simultaneously to produce three slightly different tones of prey in distress. This incredibly realistic, incredibly loud and incredibly piercing sound will get the attention of any coyote, bobcat or fox in the area. Easy to use and great for beginners and advanced callers alike.