Features black technician headset and royal blue student headset to allow teacher and student to listen simultaneously
Combination diaphragm/bell chestpiece is precisely machined to exacting tolerances from surgical stainless steel for outstanding performance and rugged durability
Adjustable frequency design technology provides enhanced acoustic response in adult diaphragm
Extra large bell for unsurpassed low-frequency response and ultra-sensitive diaphragm for greater amplification and crisper high-frequency response
Nonchill bell and diaphragm retaining rims for patient comfort
