The 3M™ Littmann® Select stethoscope features a tunable diaphragm that alternates between low- and high-frequency sounds without ever needing to turn over the chestpiece for convenience and efficiency. Patented 3M™ Littmann® Snap Tight Soft-Sealing Eartips offers a comfortable fit and added acoustic performance (available in two sizes). Made in USA. Approximate length is 28". 2 year warranty.