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. Amplification is up to 18 times greater than the best non-electronic stethoscopes. Ambient Noise Reduction (ANR) technology. Ergonomic, one-button control allows you to adjust volume and frequency mode with one finger. Traditional cardiology tube set allows scope to easily fold and be placed in pocket. Single AAA battery provides up to 200 hours (approximately 6 months) of use. Programmable volume settings. Versatile chestpiece can accommodate infant, pediatric and adult patients. Nonchill diaphragm for patient comfort. Patent-pending low friction diaphragm surface. Excellent acoustic seal and comfortable fit with patented 3M Littmannฎ Snap Tight Soft-Sealing Eartips. Automatic power shut-down after 3 minutes from last button activation. Available in multiple colors. Two-year warranty |