MDF Infant and Neonatal Stethoscope is a lightweight neonatal-perinatal stethoscope for effective auscultation of infants and neonates. This full-rotation Dual-Head stethoscope offers the ease of switching between Diaphragm and Bell for low and high frequency ascultation. MDF 787 is an economical solution for a quality, high-sensitivity acoustic diagnostic device. Ergonomically designed components and high performance functionality designate the MDF 787 as an excellent choice of infant and neonatal tethoscope. Chestpiece: Lightweight infant and neonatal size Dual-Head chestpiece, fitted with the unique raised, Ultra-Thin Fiber Diaphragm and full-rotation Acoustic Valve Stem, is constructed of quality brass with chrome plating. The deep cone-shaped bell is excellent for its acoustic sensitivity in detecting low frequency sound transmission. The Bell is crowned with a non-chill durable PVC Bell Ring to provide greater patient comfort. AccuFit Headset: Adjustable headset constructed from chrome-plated brass with ComfortSeal Eartips, provide superior acoustic transmission and ergonomic-fit for extended usage comfort. Acoustic Tubing: High-density PVC Y-acoustic tube is constructed of non-cracking, non-sticking high-density latex-free PVC. Accessories: Additional (2) ComfortSeal Eartips, (1) ultra-sensitive Diaphragm and (1) ID tag.