3M Littmann Lightweight II S.E. Stethoscope: Lightest weight of all Littmann adult stethoscopes at just 118 grams, making it comfortable for caregivers who wear their stethoscopes all day Dual-sided chestpiece provides versatility of both a tunable diaphragm and open bell Teardrop-shaped chestpiece for easier positioning under blood pressure cuffs and around bandages 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 Resilient next-generation latex-free tubing retains its shape and flexibility even after folding