The most effective, reliable and easy to use grunt call available. Creates authentic sounding burps and extended grunts over short or long distances. Enables you to make several variations simply by adjusting the "O" ring. This call also imitates the doe grunt, adult blat, and fawn bleat, giving you four calls in one. Camo lanyard included. Guaranteed not to freeze. Comes with a complete set of detailed set of instructions on how to make each call.