Key Specifications/Special Features : ? Amplification is up to 18 times greater than the best non-electronic stethoscopes. ? Ambient Noise Reduction (ANR) technology. ? Traditional cardiology tube set allows scope to easily fold and be placed in pocket. ? Two AAA Alkaline batteries ? Auditory low battery warning. ? Programmable volume settings. ? Three frequency response modes: bell mode, daiphragm mode and extended range mode ? Ergonomics and state-of-art design for excellent comfortable handling ? Versatile chestpiece can accommodate infant, pediatric and adult patients. ? Non-chill diaphragm for patient comfort. ? Patent-pending low friction diaphragm surface. ? Low battery indicator ? Auto shut off after 3 minutes from last button activation. ? Available in multiple colors. ? Two-year warranty. Suggested Applications ? Used as a diagnostic aid as part of the physical assessment of a patient. ? Recommended for cardiology and high-performance adult and pediatric use. Additional Information 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 HL-200 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 RADIANT Health Care warrants that for two years after delivery this product will be free from defects in workmanship or materials. RADIANT also warrants that this product is fit for use in accordance with its directions for use. However, RADIAT 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 RADIANT.