A stethoscope so light, you won't even know it's around your neck. The MDF® MD One® Epoch Titanium Stethoscope is constructed completely of titanium, and is our lightest and strongest stethoscope yet. At nearly half the weight of its stainless steel counterpart, this is our first non-cardiology stethoscope to produce uncompromised sound with the feel of a lightweight stethoscope. With its patented convertible true bell and true diaphragm chestpiece, this stethoscope is truly an epoch.