Tunable diaphragm allows the user to conveniently alternate between the low- and high-frequency sounds without turning over the chestpiece.
Dual-lumen design eliminates tube noise artifact from two tubes rubbing together.
Excellent acoustic seal and comfortable fit
This product(s) is classified as a Medical Device which is regulated by the FDA. This product may have regulations or restrictions in some states. It is the customer’s responsibility to determine and comply with all applicable federal, state or local laws.