The Zink Calls Power Hen PH-2 Double Reed duck call is designed and built for duck hunters who demand Zink Calls PURE DUCK SOUND. Easy Blow double reed system, combined with the short barrel design makes the PH-2 very user friendly. Great for close in work or call shy ducks. The PH-2 was designed for the hunter who likes the sound of a single reed but is tired of the over blow squeak of a single reed.