3M™ Littmann® Classic III™ Stethoscope 聽筒 (5620)

CHESTPIECE
Construction: Two-sided, adult and pediatric
Material: Stainless steel
Diaphragm type: Tunable, single-piece
Diaphragm diameter: Adult: 4.3cm / 1.7 in, Pediatric: 3.3cm / 1.3 in

TUBING
Construction: Single lumen (single acoustic channel within tube)
Material: Not made with natural rubber latex or phthalate plasticizers

HEADSET
Material: Wide diameter aerospace alloy / anodized aluminum