3M™ LITTMANN® 3200 ELECTRONIC STETHOSCOPE • 3M Code: 3200BK27 • Colour: black 3M™ Littmann® Electronic Stethoscope exceptional sound capabilities deliver an exceptional auscultation experience. Clinical evidence shows that, it is easier to detect difficult-to-hear heart sounds like S3 gallops and aortic regurgitation murmurs, as well as abnormal lung sounds. Ambient Noise Reduction Technology: it cancels out, on average, 85% of ambient background noise that can interfere with the auscultation experience, without eliminating critical body sounds. Acoustic Seal Eartips and Tubing: they create an excellent acoustic seal. It means a tighter seal from ambient noise entering through tubing and eartip connections. State-of-the-Art Sound Sensor: positioned at the base of the tubing, the sensor brings the sound more naturally to your ears. Up to 24X Sound Amplification. Useful for obese. Retro-illuminated LCD interface. Operates on single AA (alkaline or lithium) battery.