The 3M Littmann Electronic Stethoscope Model 3200 is made up with the combination of Ambient Noise Reduction technology and frictional noise dampening features. The added features of the device which include amplification, Bluetooth technology, and an all-new user interface make it user friendly and improve the quality of its performance. Up to twelve 30-second patient sound tracks can be recorded and saved by the device. Bluetooth technology is used to transmit the sound. 3M Littmann TeleSteth System, which is sold separately, helps to listen remotely. On average it can eliminate 85% of ambient noise. The sound intensify of the device is up to 24x. The device helps to visualize the heart sounds of a patient as a phonocardiogram. Non-chill scope cover, strong, latex-free design, various tube colors, bell, diaphragm and extended-range modes, 2-year warranty are the additional benefits offered by the product.