1.Twin-Tube System One tube contains two parallel sound channels intended to enhance sound quality and minimize extraneous noise.
2.Humanization Design Handcrafted solid stainless steel chest piece provides excellent performance. The Non-chill rim and diaphragm is offer comfort for your patient.
3.Convenient to Use Convenience is offered through HONSUN's "floating diaphragm" which allows you to hear low and high frequency sounds simply by applying light or firm pressure to the chest-piece.
4.Aluminum Alloy Ear Hook Standard-caliber aluminum alloy, the surface is treated with natural oxygen polarization, which has light weight, high strength and good durability.