3M Littmann Cardiology IV Stethoscope High-Performance Acoustics for Critical Listening Designed for medical professionals who demand exceptional sound quality and versatility, the Littmann Cardiology IV offers improved acoustic performance with a dual-lumen tube and tunable diaphragms on both sides of the chestpiece.  FEATURES:  Outstanding Acoustics – Hear subtle changes in patient status  Dual-Sided Chestpiece – Large side for adults, small side for pediatrics or thin patients  Tunable Diaphragms – Easily adjust pressure to hear different frequency sounds  Next-Generation Tubing – Resistant to skin oils, alcohol, and longer-lasting  Soft-Sealing Eartips – Comfortable and provide an excellent acoustic seal  Durable, Aerospace-Grade Headset – With wide-diameter anodized aluminum  SPECIFICATIONS: Length: 22″ or 27″ (55.8 cm / 69 cm) Chestpiece Material: Machined Stainless Steel Diaphragm: Epoxy/Fiberglass Net Weight: 167g / 177g Performance Rating: 9/10 Tubing Colors Available: Black, Burgundy, Caribbean Blue, Plum, Navy Blue, Raspberry, and more Finish Options: Stainless, Black, Smoke, Rainbow, Mirror  Ideal for: Cardiologists, Physicians, ICU/NICU Nurses, EMTs Made by 3M – Trusted by Healthcare Professionals Worldwide EAN: 4800000328298Product ID: 32829 SKU: PMS27329 Categories: Home, Hospital Daily Needs, Littmann