Specially designed for cardiology and has an outstanding acoustic performance, especially in cardiac frequency range. Integrated with double chest-piece having two different ranges of frequency, provides instant double membrane selection on one side or on the other side there is a conical acoustic head. It has double membrane of high performance, with a diameter of 45 mm, proffering ideal sound transmission for an exceptional skin contact also. It is very flexible yet kink-resistant with excellent acoustic reproduction. The stethoscope also includes large and soft ear olives and a pair of replacement for sound insulation.