Hunter Specialties Thunder Twister Gobble - The Thunder Twister(R) Gobble Call now has a new and improved camo-colored bellows featuring Infinity Latex(R). It delivers improved sound quality and increased volume. The twist-on silencer restricts sound when walking. Effective as a locator call. Patented. New and improved camo-colored bellows.Featuring Infinity Latex(R)Twist-on silencer restricts sound when walking.