Unbelievably easy to blow, the easy-to-use Jase Robertson Pro Series Hi-Ball Duck Call from Duck Commander sounds great through any hunting weather. Designed around a shortened poly barrel and reed combination, the Hi-Ball does not swell or shrink with the changing weather conditions of duck hunting. Using Duck Commander's patented riveted double reed, this call helps you make all the calls from a piercing high end for open water applications along with a soft, raspy low end for finishing. Hand tuned. Friction fit. Incredible consistent performance at a great value. Manufacturer model #: DCPROHB. Easy-to-use and realistic double reed duck call Unbelievably easy to blow and consistent Friction fit call with a shortened poly barrel and reed combination Riveted double reed design - wide range of realistic mallard hen calls Hand tuned