3M Health Care 6202 Stethoscope, High Polish Smoke Finish Chestpiece, Navy Tube, Blue Stem and Black Headset, 27 in. (Continental US+HI Only) (Littmann items are only available for sale online by distributors
5 Best Air Tube Headsets of 2020 - With Buyer's Guide - EMF Academy
Professional Security Headset Anti-radiation Spiral Tube Earpiece with 3.5 mm Headphone Jack for IPhone or Android Devices Blue - Walmart.com
27" inch Mirror Chestpiece, Caribbean Blue Tube, Orange Stem and Stainless Headset Littmann Classic III Monitoring Stethoscope – TheMedicalStore.com