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't respond to your grunt, it's because he can't hear you. 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. Primos is excited about having perfected this rubber grunt call for the avid whitetail hunter. Converts from a mature buck to a young buck grunt or a doe Estrus bleat with the push of a button