MD ONE line is known for performance, durability and aesthetics. Constructed from acoustically-superior stainless steelCHESTPIECE: dual head stethoscope for adult diagnostics that delivers accurate transmission of heart, lung, and stomach (gastrointestinal, bowel, etc.) sounds, and blood pressure flow (Korotkoff) sounds with acoustic integrity and clarityDIAPHRAGM: designed with a turnable, fully rotating stem for diaphragm and bell side to capture high or low frequency sounds as needed