The Cache River Duck Call was conceived as an Arkansas Style Single Reed hunting call, and has repeatedly been improved since that time. It has a wide range of capabilities. Requiring very little air, it is capable of a loud, far reaching hail call, and will descend smoothly down to a whisper and continue calling at a whisper. This quiet-end calling is becoming much more important with the increased use of public shooting grounds where constant control of ducks enhances success. The dye-cut PERMATUNE reeds are self-centering and always stay at the complete rear of the cork cavity. Each call comes with a #2 reed in it and you also receive a # 1 through # 4 and extra cork. No expertise is required to change a DUCKALL'S tune. Simply go up or down a number to increase or decrease pitch. If you don't like the change just put the # 2 back and the call will sound just as it did.