Littmann 3000BU Electronic Stethoscope With Ambient Noise Reduction - Burgundy Tube

3M's new Ambient Noise Reduction technology reduces distracting room noise by an average of 75% without eliminating critical body sounds. This stethoscope is uniquely equipped to help you pick up difficult-to-hear heart, lung and other body sounds. How Ambient Noise Reduction works. The proprietary Ambient Noise Reduction (ANR) technology, internal to the chestpiece, acoustically cancels out an average of 75% of distracting room noise, greatly enhancing overall utility. This acoustic canceling effect is different from electronic filtering, which may also filter out some portions of body sounds clinicians need to hear. Unique Design. Because of the unique design of its diaphragm and sensor, the Model 3000 can be used comfortably on all body types and sizes. The versatile chestpiece can accommodate infant, pediatric and adult patients, and it is ergonomically designed for easy hand manipulation and patient comfort. Service &Warranty. 3M Health Care warrants that for two years after delivery this product will be free from defects in workmanship or materials. 3M also warrants that this product is fit for use in accordance with its directions for use. However, 3M does not warrant that this product is fit for any other particular purpose. This warranty does not apply if this device has been altered, misused or repaired by persons not authorized by 3M.