Designed to help you listen for hard-to-hear sounds including aortic stenosis S3 gallop murmurs and faint pulmonary anomalies. Useful in critical care and challenging environments such as the ED ICU Cardiac ICU step-down unit and other dynamic locations Hear subtle changes in patient status. Diagnose and make decisions with confidence. 2Better audibility of high-frequency sounds adult side firm pressure compared to Cardiology III can help you learn more about your patients condition Education at your fingertips. Get exclusive training content on your mobile device that will help you improve your auscultation skills and use your stethoscope more effectively. The 3M Littmann Learning Institute App includes self-paced lessons with heart and lung sounds patient scenarios to help improve your diagnostic thinking self-tests to track your progress a sound library and more. Get the app and start training today Heres how: Find Find the Littmann Learning Institute App in the App Store or Google Play. Download Download the free app to your mobile device. Unlock Enter the serial number found on your 3M Littmann Stethoscope chestpiece or voucher code to unlock unique educational content.