Is it time for you to move up to the stethoscope that most doctors use? Now is good time to look over the 3M stethoscope. With this stethoscope you can use both side of the diaphragm. You can give your patients proper information about their heart. Would you like to feel the soft sealing eartips and get a 5ive year guarantee on the 3M littmann cardiology iii stethoscope? Come to our site to see all the specifications for this heart listener.