FOXPRO diaphragm calls allows you to quickly let out a coyote howl, pup distress or animal distress on your stand. These mouth calls are easy to use and have great volume capabilities. The Loaded Gun Combo pack includes the Top Gun Highlights- creates realistic male coyote vocalizations such as howls, barks, distress, yips and challenges. The Smokin' Gun Highlights creates a variety of standard coyote vocalizations such as howls, barks, distress, yips, chirps, whimpers and challenges. The Young Gun Highlights creates realistic young coyote vocalizations such as howls, barks, distress, yips, chirps and challenges.