Professional StethoscopeProfessional Stethoscope Professional Stethoscope under Hospital Equipment category. A stethoscope with clear sound and a great fitting to the ears, is very necessary for any medical practitioner or medical student. Tunable diaphragm allows for easier auscultation of a patient Handcrafted solid PVC or zinc alloy chestpiece Two tube in one hence making it in an elegant design Dual lumen tubing has two canals inside of one outer tube.