
In 1963, Harvard Medical School Professor David Littmann, a renowned cardiologist, invented a stethoscope which would revolutionize the world of medical auscultation. Stethoscope design had changed little since the nineteenth century but Littmann realised that the requirements for listening to low and high pitch sounds were different. Accordingly he patented his dual sided stethoscope which incorporated a chest piece with an open side for listening to low pitch sounds and a closed side which filtered out lower pitched sounds. In addition, the Littmann stethoscope incorporated features which made it comfortable for the practitioner to use as well as light and practical to carry. The level of sound produced by the new design made such a profound improvement on what had gone before that in 1967 the 3M corporation acquired Dr LittmannÂ’s company, Cardiosonics Inc.
As a world leader in health care products 3M continued to improve and develop the Littmann stethoscope and and in 1978 worked very closely with leading figures in the medical profession to produce the 3M Littmann Cardiology Stethoscope. This became known as the “cardiologists dream stethoscope” and featured a dual tube and an enhanced low frequency sound capability.
In 1987 a major product development breakthrough was made by 3M engineers who introduced tunable diaphragm technology to the Littmann stethoscope. Although Littmann had produced a stethoscope which was ground breaking at the time it was not without its drawbacks – the main of which involved having to remove the chest piece from the patient in order to listen to different types of sound. The new tunable diaphragm technology allowed the practitioner to alter the pressure on the chest piece in order to change from bell mode to diaphragm mode and vice-versa. Accordingly the chest piece does not need to be moved in order to be optimized for different sound frequencies. This represented a hugely significant breakthrough in the area of auscultation and in addition the fact that low frequency sounds were being amplified by a diaphragm rather than a bell meant that amplification was much greater and much clearer.
More recently 3M has developed electronic Littmann stethoscopes which contain microphone and low noise amplification allowing chest sounds to be heard 18 times louder than with conventional equipment. These state of the art stethoscopes also allow sounds to be recorded and transferred to a PC in order to be analyzed. Littmann stethoscopes continue to be the market leader in todayÂ’s technologically advanced health care market. There can be no doubt that Dr Littmann would approve of the legacy he created.
3M Littmann Stethoscopes
Littmann Select Stethoscope – basic model for general examinations
Littmann Lightweight Stethoscope – suitable for nurses
Littmann Classic II Paediatric and Infant Stethoscope – Specialist Paediatric model
Littmann Classic II Stethoscope – the standard Littmann bell design allied to a tunable diaphragm
Littmann Master Stethoscope – single sided technology
Littmann Cardiology III – features 2 tunable diaphragms
Littmann Electronic E2000 – up to 14 times the amplification
Littmann Electronic E4000 – up to 18 times the amplification with recording software
3M and Littmann are registered trademarks of the 3M Corporation
3M Littmann Master Classic Stethoscope Overview
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NEW STETHOSCOPE TUBING FITS LITTMANN® CLASSIC II SE® | ![]() |
8 Bids | US $7.51 | 25m |
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Littmann Classic II SE Stethoscope | ![]() |
1 Bid | US $45.00 | 1h 50m |
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New 3M Littmann Classic II Infant Stethoscope MAGENTA | ![]() |
12 Bids | US $50.00 | 2h 42m |
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Littmann Classic II SE Stethoscope Great condition | ![]() |
4 Bids | US $32.51 | 14h 4m |
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Littmann Classic II SE stethoscope | ![]() |
12 Bids | US $65.00 | 1d 2h 17m |
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3M Littmann Cardiology III stethoscope Littman | ![]() |
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US $159.99 | 3h 14m |
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Littmann Classic ll Pediatric Stethoscope 2123 NEW | ![]() |
2 Bids | US $26.00 | 1d 17h 40m |
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stethoscope 3M Littmann Classic red color | ![]() |
0 Bid | US $19.99 | 1d 23h 9m |
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Littmann 3M Classic II Infant Stethoscope | ![]() |
0 Bid | US $45.00 | 2d 3h 25m |
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Littmann classic II SE navy with name tag good cond | ![]() |
0 Bid | US $55.00 | 2d 4h 50m |
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Diaphragm to fit littmann reproduction wth 2 rings blak | 0 Bid | US $.99 | 6h 18m |
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Littmann Classic Stethoscope New | ![]() |
3 Bids | US $28.00 | 2d 18h 20m |
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New Littmann Classic II SE Stethoscope | ![]() |
0 Bid | US $30.00 | 2d 20h 20m |
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Littmann 3M Littmann Classic II SE SE Burgundy LK | ![]() |
0 Bid | US $.01 | 2d 21h 37m |
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Stethoscope diaphragm with ring to fit littmann | ![]() |
0 Bid | US $.99 | 2d 3h 22m |
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Litmann Classic II SE stethoscope and BP cuff combo | ![]() |
0 Bid | US $45.00 | 2d 21h 13m |
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3M LITTMANN CLASSIC II SE STETHOSCOPE 14 COLOR CHOICES | ![]() |
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US $69.90 | 19d 1h 50m |
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Littmann Classic II SE Stethoscope Nurses | ![]() |
0 Bid | US $50.00 | 3d 3h 6m |
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Littmann Classic II SE Stethoscope Excellent Condition | ![]() |
5 Bids | US $13.50 | 4d 23h |
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3M Littmann Classic II Pediatric Stethoscope Raspberry | ![]() |
2 Bids | US $9.50 | 5d 52m |
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Littmann Master Classic II Stethoscope Blk No Reserve | ![]() |
0 Bid | US $19.99 | 5d 3h 56m |
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3m Littmann Master Classic II Stethoscope Black NEW | ![]() |
2 Bids | US $56.01 | 3d 16h 40m |
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3M LITTMANN CLASSIC II BREAST CANCER PINK STETHOSCOPE | ![]() |
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US $81.98 | 25d 1h 58m |
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Stethoscope Diaphragm with Ring to fit Littmann black | ![]() |
0 Bid | US $.99 | 3d 5h 37m |
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3M LITTMANN MASTER CLASSIC II BLACK EDITION STETHOSCOPE | ![]() |
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US $114.00 | 28d 16h 45m |
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Littmann Classic II SE Stethoscope Black 2201 NEW | ![]() |
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US $61.79 | 10d 22h 23m |
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Litmann Master Classic II Stethoscope Black Edition | ![]() |
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US $110.00 | 5d 22h 37m |
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3M Littmann Brand Classic 11 SE Stethosscope | ![]() |
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US $59.99 | 6d 35m |
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Littmann Classic II SE Stethoscope | ![]() |
1 Bid | US $5.00 | 6d 4h 25m |
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Littmann Stethoscope Classic II SE with Free Engraving | ![]() |
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US $74.99 | 25d 21h 5m |
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3M LITTMANN CLASSIC II SE BLACK EDITION STETHOSCOPE NEW | ![]() |
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US $85.95 | 14d 3h 56m |
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Littmann Model 2219 Classic II Stethoscope | ![]() |
3 Bids | US $1.30 | 4d 17h 54m |
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3M LITTMANN CLASSIC II SESTETHOSCOPE MINT NIB BLACK | ![]() |
1 Bid | US $.99 | 4d 14h 19m |
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STETHOSCOPE | ![]() |
0 Bid | US $119.99 | 6d 17h 56m |
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3M LITTMANN CLASSIC II SE STETHOSCOPE 16 COLOR CHOICES | ![]() |
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US $69.90 | 23d 4h 1m |
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3M LITTMANN CARDIOLOGY III STETHOSCOPE NEW 7 COLORS | ![]() |
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US $153.25 | 22d 4h 2m |
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3M LITTMANN CLASSIC II SE STETHOSCOPE CHOOSE ANY COLOR | ![]() |
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US $73.98 | 29d 19h 46m |
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Littmann 3M Littman Classic II SE Caribbean Blue 2206 | ![]() |
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US $61.80 | 10d 14h 31m |
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3M Littmann Stethoscope Parts Tunable Diaphragm and Rim | ![]() |
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US $8.85 | 24d 15h 56m |
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New LITTMANN LITTMAN Classic II SE STETHOSCOPE BLACK | ![]() |
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US $58.99 | 29d 3h 9m |
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LITTMANN MASTER CLASSIC II STETHOSCOPE LITTMAN 8 COLORS | ![]() |
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US $96.60 | 9d 22h 8m |
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3M Littmann Classic II SE Stethoscope 18 COLOR CHOICE | ![]() |
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US $79.99 | 11d 17h 16m |
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Littmann Classic II SE Raspberry Stethoscope 2210 | ![]() |
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US $61.80 | 15d 19h 12m |
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Newest LITTMANN Classic II SE STETHOSCOPE PINK | ![]() |
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US $58.99 | 17d 1h 11m |
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Littmann Classic II SE Orange Stethoscope 2812 | ![]() |
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US $61.80 | 24d 16h 16m |
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Littman Classic II SE Stethoscope Free Name Tag | ![]() |
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US $79.99 | 20d 15h 51m |
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3M LITTMANN CLASSIC II PEDIATRIC STETHOSCOPE LITTMAN | ![]() |
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US $92.25 | 27d 7h 43m |
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3M Littmann Classic II SE SE Gray Stethoscope 2203 | ![]() |
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US $61.80 | 19d 18h 39m |
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3M Littmann Classic II SE Brand New COPPER finish | ![]() |
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US $79.99 | 27d 21h 40m |
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3M Littmann Cardiology III stethoscope 27 PLUM 3135 | ![]() |
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US $159.99 | 13d 19h 2m |
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3M Littmann Cardiology STC Stethoscope STC 27 BLACK | ![]() |
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US $181.99 | 13d 17h 24m |
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Littmann Classic II Pediatric Stethoscope 2122 Raspberr | ![]() |
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US $86.95 | 12d 14h 26m |
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3M Littmann Master Classic II Stethoscope 2144 Black | ![]() |
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US $99.00 | 26d 3h 50m |
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3M Littmann Classic II Pediatric Stethoscope Raspberry | ![]() |
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US $89.99 | 13d 21h 36m |
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3M Littmann Classic II SE New BRASS finish | ![]() |
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US $79.99 | 27d 21h 37m |
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Littmann 3M Littman Classic II SE SE Ceil Blue 2813 | ![]() |
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US $61.80 | 10d 14h 31m |
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3M Littmann Lightweight II SE Stethoscope BURGUNDY NEW | ![]() |
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US $44.95 | 15d 16h 16m |
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Littmann Classic 2 SE Stethoscope in Black | ![]() |
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US $69.49 | 27d 19h 58m |
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3M Littmann Replacement Parts Tunable Diaphragm Rim | ![]() |
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US $10.95 | 27d 15h 44m |
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3M Littmann Classic II SE Black | ![]() |
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US $75.99 | 29d 13h 41m |
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