Flextone Thunder Yelper Gen2 Turkey Call - Introducing the next generation of the Thunder Series calls designed by Flextone founder Tom Wiley. These hand held, mouth blown turkey calls use Flex-it technology and double-sided sound chambers to produce accurate, natural turkey sounds that anyone can master with little practice. Patent pending design for close to mid-range callingPerfect soft & seductive yelpsEasier to use than mouth calls