1.Silver dual head chest piece for adult, the membrane with diameter 48mm is sensitive for sound collecting.
2.The small bell-like chest piece is used for auscultating of slight and low frequency sound.
Considerate dual anti-chill ring design.
3.Connecting spring is embedded, ear tip is specially designed for suiting the ear structure.
4.Stainless steel chest piece, excellent sound conduction.
Including: A pair of Metal ear-tip and a replaceable membrane.