Product Description ADC's Adscope 613 Teaching Stethoscope provides two headsets that allow teacher and student to listen simultaneously. The stethoscope uses the combination chestpiece from our popular Adscope 603, which offers AFD technology and a combination diaphragm/bell precisely machined to exacting tolerances from surgical stainless steel. The ultra-sensitive diaphragm offers greater amplification and crisper high-frequency transmission, while the extra-large bell provides unsurpassed low-frequency response. The two clinician headset features reinforcing yoke molded into flexible phthalate-free PVC tubing, stainless binaurals, and Adsoft Plus snap-on silicone eartips for the ultimate in wearing comfort and acoustic seal. Includes a scope ID tag and two additional pairs of Adsoft Plus eartips in a convenient storage case. Lifetime warranty and free parts forever. Manufacturer Contact Information n.a.