.Sliver dual head chestpiece for cardiology diagnose ,the membrane with diameter 48MM is sensitive for sound collecting

.The small deep cone-shape chestpiece is used for auscultation of cacophony,or slight and low frequency sound

.Staninless steel chestpiece,excellent sound conduction

.considerate dual anti-chill ring design

."A" shape tubing ensure the best sound conduction

.Connecting spring is embedded,ear tip is specially designed for suiting the ear strucure

.Thhick tubing is with excellent resistance to ambient interference

.Adult or pediatric use