Reward your achievement with the unmistakable mark of distinction, a 3M Littmann Master Cardiology Stethoscope. The top of the line non-electronic stethoscope offers you the quality and durability you come to expect from 3M. Handcrafted, solid stainless steel chestpiece with double lumen tubing provides outstanding acoustic quality. Single-sided tuneable diaphragm for high and low frequencies. Special procedures adaptor for difficult site and paediatric auscultation and a non-chill rim. 7 years warranty.