The lightweight clinical stethoscope from Prestige Medical weighs in at under 4 ounces. The Clinical LiIte™ is a scope is made of anodized aluminum, giving it both strength and durability along with the comfort of its ultra-light weight. It has a two-sided diaphragm. A fiberglass diaphragm optimally detects S1 and S2 heart sounds as well as Korotkoff sounds. The bell side is designed to optimally assess S3 and S4 sounds. It has a snap-on diaphragm retaining ring and a non-child bell ring. All parts are latex-free and it comes with the Prestige Medical limited lifetime warranty.
My wife loved it , and it came on time.
this scope however cheap you may find it out there, is indeed functional. I am a nursing student and use this scope on clinicals. It seems to pickup sound well and is pretty durable. The double sided with the comfort rings is a plus also