With the push of a button, the RubberNeck converts from a mature buck grunt to a young buck grunt or a doe Estrus Bleat. Just like the Power Buck & Doe there are many times when you think that a buck won-Feett respond to your grunt, it-Feets because he can-Feett hear you. If you bleat at him first to get his attention then grunt at him, most of the time he will respond. For the ultimate tone and volume control, just squeeze the megaphone end. You can use the call with the traditional lanyard around your neck or strap it to your arm for easy accessibility in critical moments. We are excited about having perfected this rubber grunt call for the avid whitetail hunter.