The 3M™ Littmann® Classic II range offers dependable, hard-working clinical tools for physical assessment, monitoring, and diagnosis of patients of all sizes. It delivers high acoustic sensitivity, through its dual-sided chestpiece, for both high and low frequency sounds. It is used by medical professionals and students alike to identify, listen to, and study heart, lung, and other body sounds. Headset tension is easily adjusted for head size and comfort. Snap-tight, soft-sealing eartips conform to individual ears for an excellent acoustic seal and comfortable fit.