Using tone-trough technology, H.S. Strut Tone Trough Diaphragm Turkey Calls guide air over the latex, allowing callers of any experience level to get consistent and realistic hen sounds. Premium Flex Frame and Infinity latex produce consistent and realistic sounds. Available: Raspy Old Hen Ideal for raspy yelps to soft calls. Cuttn 2.5 Ideal for kee kees, cutting and yelping. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Game Calls.