... type, feature a deep cone-shaped chestpiece, with double side diaphragm and comes with non-chill ring Cardiology type, feature a ... deep cone-shaped chestpiece, with double side diaphragm and comes with non-chill ring. Special design of binaural ... /box, 25pcs/ctn , with foam package.Ctn size:89*39*24cmN.W/G.W.:15kgs/16kgsQuality Approval: CE, FDA Double diaphragm cardiology ...