3M™ 2141 Littmann® Master Classic II™ 聽筒，黑色耳管，黑色聽頭, 27 inch

3MTM 2141 Littmann® Master Classic IITM 醫用聽診器，黑色聽頭及耳管，27吋 

The Littmann® Master Classic IITM Stethoscope combines award winning ergonomic design with excellent acoustic sensitivity and comfort for quality sound transmission.

- Pressure-based sound frequency adjustment with tunable diaphragm

- Anatomically designed headset

- Comfortable fit and excellent acoustic seal with patented 3MTM Littmann® Snap-Tight Soft Sealing Eartips

Chestpiece Weight(metric): 90g; Diaphragm Diameter: 4.4cm