![Amazon.com: 3M Littmann Stethoscope, Master Cardiology, Black Tube, Stainless Steel Chestpiece, 27 inch, 2160 : Industrial & Scientific Amazon.com: 3M Littmann Stethoscope, Master Cardiology, Black Tube, Stainless Steel Chestpiece, 27 inch, 2160 : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/61x2Dw+9B1L._AC_UF894,1000_QL80_.jpg)
Amazon.com: 3M Littmann Stethoscope, Master Cardiology, Black Tube, Stainless Steel Chestpiece, 27 inch, 2160 : Industrial & Scientific
![Amazon.com: ADC 612BK Adscope Lite Model 612 Lightweight Platinum Clinician Stethoscope with Tunable AFD Technology, 30.5" Length, Black : Industrial & Scientific Amazon.com: ADC 612BK Adscope Lite Model 612 Lightweight Platinum Clinician Stethoscope with Tunable AFD Technology, 30.5" Length, Black : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/61xMk6RpdtL._AC_UF894,1000_QL80_.jpg)
Amazon.com: ADC 612BK Adscope Lite Model 612 Lightweight Platinum Clinician Stethoscope with Tunable AFD Technology, 30.5" Length, Black : Industrial & Scientific
![Amazon.com: 3M 2176 Littmann Master Cardiology Smoke Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific Amazon.com: 3M 2176 Littmann Master Cardiology Smoke Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71eXluhHpCL.jpg)