The long range IMAKA DA BULLCRAZY was designed for long range calling or windy days. Like its twin, IMAKA DA BULLCRAZY , the long range version is manipulatable so you can vary the pitch of the call to sound like multiple cow elk. It comes with a green mouthpiece for long range calling or windy days.Long Range Calling or Windy DaysManipulatable to sound like multiple cow elkU.S. Patent No. 5,910,039