The Field Proven Calls Double Shot Polycarbonate Duck Call is the ultimate full-range duck calling machine. This Field Proven duck call is built with high-quality polycarbonate for durability. A short mouthpiece easily transitions between deep, low-end quacks and higher-pitched hen sounds, while a built-in rasp creates more realistic sounds. Plus, each call is hand-tuned and tested to ensure quality and performance. Great for both timber and open water, the Field Proven Calls Double Shot Polycarbonate Duck Call has a wide tonal range and offers an innovative, lifelike double reed call.