The Littmann Cardiology IV Stethoscope Model 6240 features the raspberry tubing set with black binaurals (the things that go in your ears!), a high-polish rainbow chestpiece, and smoke anodized stem. The rainbow chestpiece is the most popular finish we sell. It is a shimmering golden color with traces of blue. A very unique finish that is cheery and fun.

The most popular stethoscope for medical professionals and students in training, the 3M Littmann Cardiology IV Diagnostic stethoscope offers great acoustic and versatility that no other stethoscope can rival. With a quick turn of the chestpiece, the 3M Littmann Cardiology IV stethoscope can be used for either adult or pediatric patients. The patented technology of the one piece tunable diaphragm lets you hear both high and low frequencies sounds from the same side.

• Single-piece tunable diaphragm allows for better sound quality and less chance of sound interference.
• Tunable diaphragms on both the adult and pediatric sides of the chestpiece.
• Soft-sealing eartips provide an excellent acoustic seal and comfortable fit
• Headset is easily adjusted for individual fit and comfort
• Dual-lumen tubing provides an individual air passage for each ear for superior sound quality
• Latex free tubing retains shape and flexibility and is more resistant to skin oils and alcohol cleaners
• Does not contain phthalate plasticizers 100% LATEX FREE
• Bell sleeve included for changing pediatric diaphragm side into an open bell
• Adult side of the diaphragm measures 1.7" 
• Pediatric side of the diaphragm measures 1.3" 
• Total product weight 6.2 oz 
• More than twice as loud* as the next leading stethoscope.
• Allows you to more reliably and consistently hear heart sounds at lower frequencies (below 120Hz*) like Korotkoff sounds, Mitral Stenosis and S3 and S4 Gallops when compared to other leading stethoscopes.
• Weighs less** than other stethoscopes.
• Made in the USA

The 3M™ Littmann® Cardiology IV™ is “built to hear more.” Enhanced listening on every level – from dual-lumen tubing (eliminates rubbing noise) to sound isolation. It’s at its best in critical care and challenging environments. 7-year warranty. May not be shipped outside the USA.

• 2-sided stainless steel chest piece
• 40% larger chest piece than Classic III™
• 60% deeper bell than Classic III™
• Dual lumen “2 tubes in 1” tubing
• For both Adult and pediatric patients
• Features “Tunable Diaphragms” (TD)
• Hear both high & low frequencies with TD
• Critical care & challenging environment
• Pediatric side converts to open bell
• Open bell for extra low frequencies
• Non-chill bell sleeve for patient comfort
• Lightweight aluminum stem and binaural
• Soft-sealing ear tips
• Excellent sound occlusion
• Easy-to-clean diaphragm
• Oil and alcohol resistant tubing
• No natural rubber latex
• Made without phthalates
• Approximate tube length: 27"
• 7-year warranty, Made in USA