![Amazon.com: 3M™ Littmann® Cardiology IV™ Diagnostic Stethoscope, High Polish Rainbow-Finish Chestpiece, Black Tube, Smoke Stem and Smoke Headset, 27 inch, 6240 : Industrial y Científico Amazon.com: 3M™ Littmann® Cardiology IV™ Diagnostic Stethoscope, High Polish Rainbow-Finish Chestpiece, Black Tube, Smoke Stem and Smoke Headset, 27 inch, 6240 : Industrial y Científico](https://m.media-amazon.com/images/I/71n35gpkbeL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 3M™ Littmann® Cardiology IV™ Diagnostic Stethoscope, High Polish Rainbow-Finish Chestpiece, Black Tube, Smoke Stem and Smoke Headset, 27 inch, 6240 : Industrial y Científico
![Amazon.com: 3M Littmann Classic III Monitoring Stethoscope with ID Tag - Caribbean Blue Tube, 27 inch : Industrial & Scientific Amazon.com: 3M Littmann Classic III Monitoring Stethoscope with ID Tag - Caribbean Blue Tube, 27 inch : Industrial & Scientific](https://m.media-amazon.com/images/I/51cU6tuMfwL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 3M Littmann Classic III Monitoring Stethoscope with ID Tag - Caribbean Blue Tube, 27 inch : Industrial & Scientific
![Amazon.com: 3M Littmann Classic II Estetoscopio para niños (múltiples tamaños/colores), negro, (Black Tube), 1 : Industrial y Científico Amazon.com: 3M Littmann Classic II Estetoscopio para niños (múltiples tamaños/colores), negro, (Black Tube), 1 : Industrial y Científico](https://m.media-amazon.com/images/I/41sD9jjVnrL.jpg)
Amazon.com: 3M Littmann Classic II Estetoscopio para niños (múltiples tamaños/colores), negro, (Black Tube), 1 : Industrial y Científico
![Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Black Edition Chestpiece, Black Tube, 27 inch, 5803 + 40007 Stethoscope Identification Tag, Black : Industrial & Scientific Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Black Edition Chestpiece, Black Tube, 27 inch, 5803 + 40007 Stethoscope Identification Tag, Black : Industrial & Scientific](https://m.media-amazon.com/images/I/61a+llsYIVL._AC_UF350,350_QL80_.jpg)
Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Black Edition Chestpiece, Black Tube, 27 inch, 5803 + 40007 Stethoscope Identification Tag, Black : Industrial & Scientific
![Amazon.com: U.S. Army Stethoscope, OEM Classic Single Head Cardiology for Medical and Clinical Use - 27 inch (Black) : Industrial & Scientific Amazon.com: U.S. Army Stethoscope, OEM Classic Single Head Cardiology for Medical and Clinical Use - 27 inch (Black) : Industrial & Scientific](https://m.media-amazon.com/images/I/613Vz9KtnsL.jpg)
Amazon.com: U.S. Army Stethoscope, OEM Classic Single Head Cardiology for Medical and Clinical Use - 27 inch (Black) : Industrial & Scientific
![Amazon.com: 3M 6163 Littmann Cardiology IV Black Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific Amazon.com: 3M 6163 Littmann Cardiology IV Black Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific](https://m.media-amazon.com/images/I/61eW37HIomL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 3M 6163 Littmann Cardiology IV Black Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
![Amazon.com: 3M Littmann Lightweight II S.E. Estetoscopio, Tubo Color Negro, 28 pulgadas, 2450 : Industrial y Científico Amazon.com: 3M Littmann Lightweight II S.E. Estetoscopio, Tubo Color Negro, 28 pulgadas, 2450 : Industrial y Científico](https://m.media-amazon.com/images/I/61eYME61Z3L.jpg)
Amazon.com: 3M Littmann Lightweight II S.E. Estetoscopio, Tubo Color Negro, 28 pulgadas, 2450 : Industrial y Científico
![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/I/71eXluhHpCL.jpg)
Amazon.com: 3M 2176 Littmann Master Cardiology Smoke Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
![Amazon.com: Paramed Stethoscope - Classic Dual Head - for Doctors, Nurses, Med Students, Professional Pediatric, Medical, Cardiology, Home Use - Extra Diaphragm, 4 Eartips, Accessory Case, Name Tag - 29.5 inch : Industrial & Scientific Amazon.com: Paramed Stethoscope - Classic Dual Head - for Doctors, Nurses, Med Students, Professional Pediatric, Medical, Cardiology, Home Use - Extra Diaphragm, 4 Eartips, Accessory Case, Name Tag - 29.5 inch : Industrial & Scientific](https://m.media-amazon.com/images/I/71r8RBFNqiL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Paramed Stethoscope - Classic Dual Head - for Doctors, Nurses, Med Students, Professional Pediatric, Medical, Cardiology, Home Use - Extra Diaphragm, 4 Eartips, Accessory Case, Name Tag - 29.5 inch : Industrial & Scientific
![Amazon.com: 3M Littmann Lightweight II S.E. Estetoscopio, Tubo Color Negro, 28 pulgadas, 2450 : Industrial y Científico Amazon.com: 3M Littmann Lightweight II S.E. Estetoscopio, Tubo Color Negro, 28 pulgadas, 2450 : Industrial y Científico](https://m.media-amazon.com/images/I/617g-1CZmKL.jpg)
Amazon.com: 3M Littmann Lightweight II S.E. Estetoscopio, Tubo Color Negro, 28 pulgadas, 2450 : Industrial y Científico
![Amazon.com: Classic III Stethoscope, for Children and Adult (5620 Black Stainless) : Industrial & Scientific Amazon.com: Classic III Stethoscope, for Children and Adult (5620 Black Stainless) : Industrial & Scientific](https://m.media-amazon.com/images/I/51FDS89tv7L.jpg)
Amazon.com: Classic III Stethoscope, for Children and Adult (5620 Black Stainless) : Industrial & Scientific
![Amazon.com: 3M Littmann Classic III - 5623 - Estetoscopio de control, tubo color azul caribeño, 27 pulgadas. 40007 - Etiqueta de identificación de estetoscopio color negro. : Industrial y Científico Amazon.com: 3M Littmann Classic III - 5623 - Estetoscopio de control, tubo color azul caribeño, 27 pulgadas. 40007 - Etiqueta de identificación de estetoscopio color negro. : Industrial y Científico](https://m.media-amazon.com/images/I/61gVbv-zJrL.jpg)
Amazon.com: 3M Littmann Classic III - 5623 - Estetoscopio de control, tubo color azul caribeño, 27 pulgadas. 40007 - Etiqueta de identificación de estetoscopio color negro. : Industrial y Científico
![Amazon.com: 3M Littmann Classic III - 5623 - Estetoscopio de control, tubo color azul caribeño, 27 pulgadas. 40007 - Etiqueta de identificación de estetoscopio color negro. : Industrial y Científico Amazon.com: 3M Littmann Classic III - 5623 - Estetoscopio de control, tubo color azul caribeño, 27 pulgadas. 40007 - Etiqueta de identificación de estetoscopio color negro. : Industrial y Científico](https://m.media-amazon.com/images/I/81TT+b7DpJL.jpg)