The name Ki-Yi was derived from the sound an injured dog makes. Our Ki-Yi also produces the raspy, distress calls of prey, which appeals to all predators. This call has a removable mouthpiece which can be used alone to produce the various pitches ranging from fawn distress calls, pup whines to rabbit screams. It is easy to use and is small which makes it great for compact carry. The shrill wake-up calls of the Ki-Yi will definitely get their attention.Great for all distress callsRemovable mouthpiece for open-reed callingU.S. Patent Nos. D502,119 & 5,910,039