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3M Littmann Cardiology IV Diagnostic Stethoscope - High Polish Rainbow, Raspberry Tube, Smoke Stem, Smoke Headset

The 3M Littmann Cardiology IV Diagnostic Stethoscope - High Polish Rainbow, Raspberry Tube, Smoke Stem, Smoke Headset is the next generation of one of the most recognised stethoscopes in the profession, offering improved acoustic performance with better audibility of high-frequency sounds (adult side, firm pressure). Its distinctive chalice-shaped chest piece features tuneable diaphragms on both sides to deliver outstanding acoustic performance, diagnostic versatility, and convenience for treating adult and paediatric patients.

The paediatric side of the chest piece converts to a traditional open bell by removing the tuneable diaphragm and replacing it with the included non-chill bell sleeve. Both the adult and paediatric sides of the chest piece have single-piece diaphragms that are easy to remove, attach and clean because the surfaces are smooth and without crevices.

Tuneable diaphragm technology, a 3M invention, lets clinicians hear different frequency sounds by simply adjusting the pressure on the chest piece.


High Polish Rainbow, Raspberry Tube, Smoke Stem, Smoke Headset.
Versatile, double-sided chest piece for adult and paediatric auscultation.
Tuneable diaphragm: Hear high or low-frequency sounds by slightly adjusting pressure on the chest piece.
Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes.
Next-generation tubing lasts longer and resists stains.
Not made with natural rubber latex or phthalate plasticizers.
Headset is easily adjusted for individual fit and comfort.
Angled ear tubes align with ear canals.
Expect strong performance with a 9+ rating on a 1-10 scale.
Seven-year warranty provides greater peace of mind.


Applications: Cardiology/High Performance
Binaural Construction: Double Lumen
Chestpiece Technology: Double-sided
Chestpiece Weight: 87g
Diaphragm Diameter: 4.3cm, 4.3mil
Diaphragm Material: Epoxy/Fiberglass
Diaphragm Type: Tuneable, single-piece
Eartip Type: Soft Sealing
Extra Eartips: Yes
Headset Material: Anodized Aluminium
Model: Cardiology IV
Net Weight (Metric): 177g
Occupation: Anaesthesiologist, Cardiologist, Emergency Physician, EMT/EMS, Family Practitioner, Internist, Medical Student, Nurse, Paediatrician, Physician, Respiratory Specialist, Teacher/Professor/Instructor
Performance: 9
Small Diaphragm Diameter: 3.3cm, 3.3mil
Special Adaptors: No
Warranty Period: 7 years

  • Free delivery on orders over £75 (UK mainland only)
  • £4.99 for orders under £75 (UK mainland only)
  • £6.99 for Next Working day delivery
  • £10.99 for Next working day before 10:30am
  • All prices are Excl VAT
  • Orders Placed on Monday to Thursday before 3pm will be dispatched the same day (if all items are in stock)
  • Orders placed on Fridays before 12pm will be dispatched the same day (if all items are in stock)
  • All the above excludes Bank Holidays & Direct Delivery items


  • Items delivered direct from the Manufacturer may take longer. 
  • If you wish to order a direct delivery item but need the item by a certain date, please call us on 01992 893 398 and we will endeavour to get a delivery time for you.
  • We can deliver Worldwide
  • International deliveries can take longer than the standard 2-5 working days
  • P&P charges may change. We will contact you before applying these changes and confirming your order
  • It is the customer’s responsibility to confirm specific custom requirements for their country. MidMeds will accept no responsibility for customs refusal and all charges will be passed on to the client
  • 30 Day money back guarantee, as long as the products are in their original condition (This excludes Furniture, Special Orders and Pharmaceuticals)
  • You will receive a full refund minus postage and a 3% credit transaction charge if you paid by credit card
  • For more information visit our help desk for FAQ