Approved Environmental Marketing Claim (EMC):3M Littmann tubing does not contain phthalate plasticizers. It improves resistance to skin oils and alcohol, and is less likely to pick up stains
Binaural Construction:Single lumen
Chestpiece Finish:Mirror
Chestpiece Size:1.7 Inch / 4.3 cm|| 1.3 Inch / 3.3 cm
Chestpiece Technology:Double Sided
Chestpiece Weight:2.9 Ounce
Chestpiece Weight (Metric):82 g
Diaphragm Diameter (Imperial):1.7 in
Diaphragm Diameter (Metric):4.3 cm
Diaphragm Material:Epoxy/Fiberglass
Diaphragm Shape:Round
Diaphragm Type:Tunable, single-piece
Eartip Type:Soft Sealing
Extra Eartips:Yes
Headset Finish:Smoke
Length:27 cm
Length (Metric):69 in
Most Significant Environmental Benefit:3M Littmann next-generation tubing is not made with natural rubber latex, and does not contain phthalate plasticizers