Woodhaven Calls The Ninja Turkey Call Crystal - The Ninja Crystal is built into a walnut pot with a YellowHeart soundboard which offers a very true to life turkey sound. This call comes with two hand-matched strikers, one being Ninja Stick and the other being hickory that will offer each hunter the ability to sound like two different hens. The Ninja Crystal produces great two-tone yelps as well as great cutts, cackles, and purrs. This call affords you the ability to call both loud and soft.