General Information
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.Koss QZ 50 model features a revolutionary Active Noise Reduction (ANR) stereo phone system that reduces harmful and annoying low frequency sounds in noisy environments; a dynamic element for full sound reproduction as well as a behind-the-head stereo phone design for maximum comfort during extended wearing periods.
