"With its lightweight, durable design, the 3M™ Littmann® Select Stethoscope provides the reliable acoustic performance needed for heart, lung, and blood pressure assessment—at an economical price. Benefits 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 ear tubes align with ear canals. Non-chill rim and diaphragm for patient comfort."