This simple stethoscope is based off of a public domain image from Wikimedia commons (by user Sonarpulse) ... I realize there are already a lot of stethoscopes on here, but I thought one with a new shape and twist might be useful. Enjoy!
簡單的聽診器
doctor、hearing、heart、medicine、science、stethoscope
醫生、聽力、心、醫學、科學、聽筒
資料來源：openclipart ( https://openclipart.org/ )