The 4K9 offers an open reed design, which allows you to create a variety of sounds from coyote vocalizations to rabbit and other popular distress cries with ease. The raised ridge helps prevent the reed from freezing to the tone board in cold weather conditions. The 4K9 has a soft flexible bell for extreme comfort and allows you to bring new strategies and scenarios to enhance your predator hunting experience. Open reed design Raised ridge on the tone board to help it prevent from freezing Easy to use Versatile calling applications Produces coyote vocalizations and prey distress sounds Re-designed soft flexible bell for extreme comfort