The Coyote Hooker Predator Call From Johnny Stewart Wildlife Calls Allows You To Easily Imitate Authentic Coyote Sounds With The Simple Push Of a Button. The Call features An Internal-Reed Design With a Molded Membrane On Top. By Blowing The Call And adjusting The Pressure On The Membrane, You Can Easily Change The Pitch Of The Call. The Coyote Hooker Predator Call Is Lightweight And Comes With a Lanyard.