Designed for cardiology. Delivers superior acoustic sensitivity. Features: Precision machined stainless steel dual head chestpiece, valve stem and binaural. A dual binaural spring is incorporated inside the tubing to reduce bulk and weight.Non-chill rings are fitted to the diaphragm and deep cone shaped bell receivers for patient comfort. Soft eartips ensure a comfortable, correct fit. Two separate channels in one piece of black non-latex tubing. Extra eartips and a replacement diaphragm are included. Length - 27" Product ID. WA-Cardio