Littmann® Master Cardiology™ Cardiology Stethoscope, Sold As 1/Each Solventum 2176 Anatomically Designed Headset Two-In-One Tube Design (Dual Lumen) Eliminates Noise From Two Tubes Rubbing Together Pressure-Based Sound Frequency Adjustment With Tunable Diaphragm Special-Procedures Adaptor (Included) For Neonatal Or Pediatric Auscultation Non-Chill Rim And Diaphragm Smoke-Finish Chest Piece Stethoscope, Cardio Litt Master Smoke Blk Tu 27" 3M Cardiology Stethoscope 3M™ Littmann® Master Cardiology™ Black 1-Tube 27 Inch Tube Single Sided Chestpiece 3M™ Littmann® Master Cardiology™Sku: Mck-765140_Ea Mfgr Sku: 2176765140_EaShips In 14-21 Days