The field legal hot rod of goose calls. RNT removed the stock muffler and opened up the exhaust on the the Mongoose call. The RNT Mongoose features rich, clear sounds that is easy to use for all goose hunters. This call was field tested and proven by RNT Calls goose guru Shawn Stahl and pro staff members for an entire season while filming for future RNT-V episodes. This call allows for a very wide range of sounds giving you maximum versatility in the field.