Have you heard of ADC stethoscope? I bought this off Amazon read the reviews. You can save a lot of money. www.amazon.com/gp/aw/d/B006BV5MPA/ref=pd_aw_sim_sbs_328_2?ie=UTF8&dpID=41CHPzOGjcL&dpSrc=sims&preST=_AC_UL100_SR100,100_&refRID=06VEVKN5BKZRS0F3BMRY&th=0