3M™ Littmann® Cardiology III™ Stethoscope, Black Plated Chestpiece and Eartubes, Black Tube, 27 inch, 3131BE

• • Versatile, double-sided chestpiece for adult and pediatric auscultation.
  • Pediatric side converts to an open bell by replacing the diaphragm with a non-chill bell sleeve (included).
  • 可调膜片：通过稍微调节胸部的压力来听到高频或低频声音。
  • Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes.
  • Headset is easily adjusted for individual fit and comfort. Angled eartubes align with ear canals