As all of the other reviews have stated, this is a cool little scope. There are only two flaws, the diaphram shape and the bell. I've had mine for years, and, working in a veterinary office, it gets abused. The diaphram is torn, with any other scope, this is no problem, just replace the diaphram, however, I cannot get an oval shaped replacement diaphram anywhere. Second complaint is the bell. On Littmann stethoscopes, with the much hyped ""tunable"" diaphram, what is the point of the bell? I see that Littmann has released the ""Select"" model, addressing both of these issues.