Flextone Coyote Rage Howler Call Black. The call features natural sounds and has a soft flexible barrel that controls volume and back pressure when you squeeze the end. The call remains silent even if it accidentally comes into contact with your gun or a bow. Specifications for Flextone Coyote Rage Howler Call: Manufacturer: Flextone Color: Black Package Contents: Flextone Coyote Rage Howler Call Flextone FLXPD001: Coyote Rage Howler Call Black