3M Littmann™ Doppelkopf Stethoskop (2.Generation)

Product information:

Auscultation head design: double-sided
Auscultation head material: metal resin composite
Type of auscultation membrane: suspension adjustable vibrating membrane
Diameter of auscultation membrane: 5.4x4.8 cm (drop-shaped)
Clock face diameter: 3.4x3.2 cm (drop-shaped)
Auscultation tube design: single lumen tube
Auscultation tube material: free of natural latex and phthalate plasticizer
Earpiece design: Hidden earpiece spring with adjustable elasticity
Designed to fit the human ear canal angle
Earpiece material: Aerospace grade aluminum alloy