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Diaphragm or bell stethoscopes were designed for noninvasive examinations through auscultation. Featuring the traditional stainless steel chest piece, these medical devices transmit the body vibration induced pressure waves through hollow tubes to the ear pieces. The thick tubing comes in a variety of colors and promises acoustic leakage or background interference will not occur for maximum clarity. Required in all clinical environments, the stethoscopes are created specifically for adult, infant, or pediatric patients.