DescriptionThe3M Littmann Lightweight II S.E. is the choice for basic clinical use primary assessment and initial triage. At an entry-level price the Littmann Lightweight II S.E. offers a high-quality alternative to common Sprague and nurse stethoscopes. Teardrop-shaped chestpiece is easier to orient and position around blood-pressure cuffs and body contours. Combination bell/diaphragm chestpiece provides clear reliable acoustic performance. Two-year warranty. Dual Head Stethoscope Tunable diaphragm alternates between low- and high frequencies without turning over the chestpiece Lightweight adjustable-tension headset and snap-tight soft-sealing eartips Double-leaf binaural spring allows easy tension adjustment for comfortable fit Patient-friendly non-chill rim and diaphragm assembly Most tubing colors come with Pantone eartubes and grey eartips except black tubing which comes with black eartips. 28 length Littmann Stethoscope Comparison Chart This product can be shipped anywhere in the 50 United States Puerto Rico The US Virgin Islands and APO and FPO addresses. Sorry we cannot ship this product to any other address. var UPCMp = UPC:707387562410 Color:450 Black (28 inch) UPC:707387562427 Color:451 Burgundy (28 inch) UPC:707387562434 Color:452 Caribbean Blue (28 inch) UPC:707387562441 Color:453 Lilac (28 inch) UPC:707387562458 Color:454 Ceil Blue (28 inch) UPC:707387562465 Color:455 Seafoam Green (28 inch) UPC:707387563455 Color:456 Pearl Pink (28 inch) ; From the Manufacturer The 3M 153 Littmann 174 Lightweight II S.E. Stethoscope features tunable diaphragm technology for reliable and clear acoustic performance in this lightweight version. Tunable diaphragm captures high and low freq. sounds view larger Composite material provides lighter weight view larger Place diaphragm on surface to listen in bell mode view larger Apply slight pressure to listen in diaphragm mode view larger Tunable Diaphragm the Heart of the Lightweight II S.E. Stethoscope The unique shape of the chestpiece also allows easy navigation around blood pressure cuffs and bandages. This stethoscope is a useful diagnostic tool for blood pressure and limited physical assessment in adult patients and its light weight and tunable diaphragm make it an ideal choice for certified nursing assistants, licensed practical nurses, EMT/EMS, licensed vocational nurses, medical assistants and nursing students. Littmann 174 tunable diaphragm technology offers reliable and clear acoustics, versatility and time-saving convenience. Switching between bell and diaphragm modes is as easy as a simple pressure change on the chestpiece. There is no need to remove, index and replace for same-site auscultation. Resilient tubing folds tightly for pocket portability and retains its shape while patented Snap Tight Soft-Sealing Eartips help form an effective acoustic seal. The anatomically correct headset is angled to channel sound and enhance listening comfort while the nonchill rim and diaphragm provide patient comfort. The Lightweight II S.E. is made in the USA. The product and package are latex-free. What are Stethoscopes 63 Stethoscopes are diagnostic instruments that amplify sounds made by the body from the heart, lungs, abdomen and intestinal tract, or other body sites. A stethoscope is used to detect and study internal systems, such as fetal development, blood flow or blood pressure (BP), and respiration, and sounds, such as cardiac, venous, arterial, pulmonary, and uterine. Stethoscopes typically have Y-shaped rubber tubing that allows sound to travel from the chestpiece to the eartips. An open bell detects low frequency sounds, and a diaphragm detects high frequency sounds. A stethoscope can come as single, double (dual), or triple-head. Binaural stethoscopes are used with both ears, and single stethoscopes work with one ear. Differential stethoscopes are double-head, and allow sound comparison between different body sites. Non-electronic, also called mechanical or acoustic stethoscopes, transmit sound through hollow tubing to a listener 's ear. Stethoscopes are used by students and a wide array of healthcare providers including physicians, nurses, and veterinarians, as well as specialists such as cardiologists, pediatricians, gastroenterologists, pulmonologists, and respiratory professionals in hospital, clinical, or other healthcare facilities. About 3M Healthcare For more than a century, 3M has applied innovation and technology to improving our customers ' lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial, healthcare, commercial customers and consumers in nearly 200 countries. That same spirit of technical innovation is built into every 3M Littmann product to provide healthcare professionals with precision, inventive design, and high acoustic sensitivity for exceptional performance. The 3M brand, across thousands of products, represents consistency, superior quality, and value. What's in the Box: Lightweight II S.E. Stethoscope Instructions Littmann Lightweight II S.E. Product Features Model Lightweight II S.E. Application Physical Assessment and Blood Pressure Chestpiece Finish Metal/Resin Composite Chestpiece Technology Double sided Chestpiece Weight 47 Grams Diaphragm Diameter 2.125 inches / 5.4 cm Diaphragm Material Epoxy/Fiberglass Diaphragm Type Tunable Diaphragm Eartip Type Soft Sealing Headset Material Wide Diameter Aerospace Alloy / Anodized Aluminum Length 28 inches / 71 cm Net Weight 118 Gram Occupation EMT/EMS, Medical Assistant, Nurse, Nursing Student Patient Adult