Simple. Versatile. Dependable. The A-Frame™ call uses a patent pending process to trap the reeds and keep the perfect tension, so the call will continue to sound great over time. The A-Frames™ are contoured to fit your mouth, not flat like other calls. The Sonic Dome® has been designed so the call is automatically positioned correctly in your mouth. The Sonic Dome® creates its own sound chamber, for an incredibly consistent sound. You’ll be amazed at how easily the calls in the Cutter 3-Pak are to use. These calls will do it all.