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Customer Reviews of 3M Littmann 3000 Electronic Stethoscope, 29 Inch, Navy BlueCustomer Review: It's a good item. Summary: 4 Stars
It's really usefull. But, some points could be better. For example, I don't think the Ambient Noise Reduction works very well, I still hear a lot of sounds I didn't want to. Besides, the tube, not only the diaphragm, is a source of amplified sound, what maximizes the interference. But it works well in amplifying difficult-to-hear heart sounds, mainly in a quiet place. I liked it.
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