Littmann Lightweight II S.E. Stethoscope is an ideal entry-level instrument, with a tunable diaphragm, dual-sided chestpiece, and reliable acoustic performance. Its teardrop shape makes auscultation around blood pressure cuffs easier. The Littmann Lightweight II S.E. Stethoscope provides reliable acoustic performance for taking blood pressure readings and making limited physical assessments of adult patients. Weighing just 118 grams, its the lightest of all Littmann adult stethoscopes, making it more comfortable for caregivers who wear their stethoscopes all day long.