The Littmann Master Cardiology Stethoscope is a high functioning diagnostic instrument that can be used by medical practitioners for sound amplification of human body internal movements. It boasts of a tunable diaphragm that responds with a simple pressure change to capture low and high-frequency sound. With its hand crafted stainless steel design that features precise sound reception, you will not be disappointed with this portable stethoscope. Sporting a two-in-one tube design (dual lumen) that bars noise interference from the two external tubes rubbing together, it delivers high acoustic sensitivity. It features a 27 inch black tube that makes it portable and convenient to apply on the visiting patients. The design of this stethoscope is very innovative which makes it a versatile medical device for best sound amplifying results. The highlight of the Littmann Master Cardiology Stethoscope is its anatomically designed headset and special procedures adaptor for infants or paediatric auscultation. This useful stethoscope comes with a 7 years manufacturing warranty that labels it as a trust worthy device and vouches for its quality.