FeaturesPatent Pending design for mid to long range callingLoud, raspy Yelps & Cutts perfect for locating gobblersErgonomic mouth piece for loud callingEasier than using diaphragm callsTom Wiley continues to be the inspiration for the new and innovative designs in the flextone line of game calls but the benefits of collaborative efforts of this team are what has made flextone technology truly revolutionary. Tom's newest designs are the Thunder Series of turkey calls and are sure to take the term revolutionary to a whole new level. These hybrid, hand held/diaphragm calls make it simple to make all turkey vocalizations.