SCIAN Zinc Alloy Premium Single Head Stethoscope Kit for Med Students Doctors Nurses Professional Pediatric Medical Cardiology Home Use Gift Stethoscope

SCIAN zinc alloy premium single head stethoscope kit for med students doctors nurses professional pediatric medical cardiology home use, gift stethoscope Feature: Considerately anti-chill ring design Ear tips are specially designed to fit the ear structure Zinc alloy chestpiece with nickel-plated silver finish, excellent sound conduction, low acoustic attenuation Silver single head chestpiece, ergonomic design for comfortable use. the diameter of chestpiece is 46mm, and it can catch both low frequency and high-frequency sounds by pressing the back