This 3M Littmann Lightweight II S.E. Classic Stethoscope is a general-purpose, entry-level stethoscope as well as an excellent, affordable choice for basic blood-pressure and limited physical assessment. The chestpiece is designed for better orientation around blood-pressure cuffs and body contours and provides clear, reliable acoustic performance. The tunable diaphragm allows the user to conveniently alternate between low- and high-frequency sounds without turning over the chestpiece while the combination bell/diaphragm chestpiece provides clear, reliable acoustic performance.