3M Littmann Cardiology IV Diagnostic Stethoscope, Standard-Finish Chestpiece, Navy Blue Tube, Stainless Stem and Headset, 27 inch, 6154

Excellent Acoustic Performance. Single-piece tunable diaphragms let you hear high and low frequency sounds on both the adult and pediatric sides of the chestpiece.. Pediatric side converts to an open bell. Just remove the single-piece diaphragm and replace it with a non-chill rim.. Open bell stays clear of dirt and debris by covering it with the small diaphragm.. Dual-lumen tubing combines two sound paths in one tube, eliminating the rubbing noise of traditional double tubes.. Not made with natural rubber latex or phthalate plasticizers, next-generation tubing lasts longer with improved resistance to skin oils and alcohol and is less likely to pick up stains.. Longer seven-year warranty