Description
Voyager Messenger Black Petrol SUMB The deep cone shaped bell is Navy Blazer Heather Size:08 28 194661234598 Sleek and speedy The deep cone shaped bell is ideally suited to detect lower frequency heart sounds (20 660 Hz) while the snap on fiberglass diaphragm is specialized for detecting higher frequency heart and respiratory sounds (150 1000 Hz) color matched silicone sleeve for ultimate durability