Power Calls 27321 Ion Open Call Attracts Canada Goose Gray Polycarbonate/Acrylic Power-Calls Ion Is Simply Built For Speed And Versatility. Designed With One-Handed Operation In Mind, The Short Body Of The Call Allows For Maximum Variability In Calling Styles, Without The Need For added Hand Back-Pressure. This Is Crucial When operating a Flag. The Ion Comes With Our Molded Broken-In Lightning Guts That Provide a Realistic Tone From Top To Bottom.