3M Littmann Stethoscopes are used by millions of medical professionals around the world who are dedicated to achieving the best patient outcomes. Littmann stethoscopes offer superb acoustic performance, consistently high quality, and outstanding value. Wearing a Littmann stethoscope is an expression of your commitment to medicine, and personal success. Single-sided chestpiece designed for easier grip and maneuvering. Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece. Soft-sealing eartips provide an excellent acoustic seal and comfortable fit. Headset is easily adjusted for individual fit and comfort. Angled eartubes align with ear canals. Non-chill diaphragm and rim provide patient comfort. Three year warranty on this product includes free repair during this period on any manufacturing or material defect(s). Made in the USA Latex Free.