Hunters Specialties Rabbit Frenzy Diaphragm Calls. Its two-reed design features a unique 45-degree cut that produces high-pitched young cottontail rabbit distress sounds. It features a Premium Flex frame for consistent stretch and sound and is made of high-quality Infinity Latex for durability over a full hunting season. Specifications for Hunters Specialties Rabbit Frenzy Diaphragm Call: Manufacturer: Hunters Specialties Fabric/Material: Infinity Latex Species: Rabbit Country of Origin: USA Package Contents: Hunters Specialties Johnny Stewart Rabbit Frenzy Diaphragm Call Hunters Specialties HS-JS-DIA-6: Rabbit Frenzy Diaphragm Calls