This model's exceptional sound quality reduces background noise an average of 85% with it's Ambient Noise Reduction Technology and amplifies sounds up to 24 times to hear faint sounds you might otherwise miss. You can auscultate immediately, thanks to the instant-on technology. The power button quickly activates backlight for low light conditions and the stethoscope stays in battery-saving "sleep-mode" until you start your next auscultation. The backlight LCD display includes frequency selection, sound level, remaining battery life and your patient's heart rate.
Littmann 3100 Electronic Stethoscope - 3100BK27 - Learning: Supplies Paper Business Cards & Name Tags Business Cards
100% Satisfaction Guarantee: At Mansion Schools, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Schools in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.