Wild game rely on their keen sense of hearing to communicate and keep them aware of their environment. Now you can amplify any of the Cass Creek Game Calls to lure game in close. The Big Horn XL can be used as a remote unit with the Nomad MX4 Series as well as a standard extension speaker with all the original model Cass Creek calls. Three times louder than the original speaker, the Big Horn Outdoor Speaker is excellent where volume and large area coverage is necessary. Call dangerous game in, but keep them at a safe distance.