Koss Corporation QZ50 ANR Stereophone System

New advances in materials and design have served to expand the performance of stereophones. Koss' Product Development team and engineers look for the most innovative combinations of existing and new technologies to deliver the most exciting products possible.

Frequency Response: 30-20,000 Hz

Revolutionary Active Noise Reduction (ANR) stereophone system reduces harmful and annoying low frequency sounds in noisy environments

Dynamic element for full sound reproduction

Behind-the-head stereophone design for maximum comfort during extended wearing periods

Requires 1 "AAA" battery
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