Initially designed for racing radio scanner and metal detector users, the Koss QZ99 Passive Noise Reduction Headphones feature superior isolating capabilities and secure over-the-head headband design.
The closed Pneumalite™ ear cushions an...
Reviews
4.6
8 ratings
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Tried the rest, Koss is the best!
These are to replace an 30 year old set of Koss accu sound for my metal detecting hobby. Better than any I’ve tried so far and just as good or slightly better than my old Koss ones because the noise canceling is better. I didn’t like the liquid/gel filled earcups so I bought a regular foam set on Amazon. Literally took less than a minute to take the old ones off and install the new ones. Still 5 stars but individual earcup volume adjustment would be nice. Thanks to Koss for making a superior metal detecting headphone! The QZ99 is tops, and I’ve tried lots of detecting specific headphones which are always a letdown compared to the Koss.
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Brad · July 21, 2026
These headphones seem excellent and were delivered in a timely manner.
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Anonymous · July 14, 2026
Headphones work great. I use them on my amateur radios and they produce clear full range voice communication.
