3M Littmann� Cardiology IV? Diagnostic Stethoscope Champagne-Finish Chestpiece and Stem Burgundy Tube Diagnose and make decisions with confidence Hear subtle changes in patient status Useful in critical care and challenging environments such as the ED ICU Cardiac ICU step-down unit and other dynamic locations 7-year warranty Ergonomic and high profile construction; 40% larger chestpiece and 60% deeper bell than the 3M? Littmann� Classic III? Stethoscope Designed for use with adult and pediatric patients Tunable dual-sided stainless steel chestpiece with open or closed bell Non-chill bell sleeve for greater patient comfort Soft-sealing eartips provide optimal comfort and excellent sound occlusion Made in the USA without natural rubber latex Built to hear more Sturdy and refined the Littmann Cardiology IV helps isolate subtle sounds2 so you can hear changes in your patients in the most critical and challenging environments. Designed to help you listen for hard-to-hear sounds including aortic stenosis S3 gallop murmurs and faint pulmonary anomalies. Useful in critical care and challenging environments Such as the ED ICU Cardiac ICU step-down unit and other dynamic locations Hear subtle changes in patient status. Diagnose and make decisions with confidence. 2Better audibility of high-frequency sounds (adult side firm pressure) compared to Cardiology III can help you learn more about your patient?s condition