Patented piezopolymer film contact microphone provides wider and purer frequency response than acoustic microphones used in competing models. It has three frequency modes (Bell (50 - 200hz) for cardiac sounds, Diaphragm (100 - 500hz) for lung sounds and Wide range (15 - 4000hz)). Built with a stainless steel brush finish chestpiece and is supplied with super comfortable ear tips and a two year warranty. Requires
one x 3v Lithium ion battery.

2 Year Warranty