Profile: Stethoscopes.to is an authorized 3M™ Littmann™ dealer on the internet. Our Littman brand stethoscope ID tag is durable. The customer has the option to affix either a write-on or engravable name plate. Once the name plate is secured to the I.D. tag, it also serves as a name badge. Customers may choose to engrave the name plate themselves at a local engraver, or send it to 3M's nationwide engraving service. The stethoscope identification tag is available in black, to match black stethoscopes, or gray, to match all colors. Our Littmann Master Cardiology Stethoscope is an acoustical stethoscope. It has patented single-sided master chestpiece with tunable diaphragm, that enables monitoring both high and low frequencies without having to turn over the chestpiece.