The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal.

Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord.

The QZ-99 Noise Reduction Stereophone features revolutionary Passive Noise Reduction stereophone system that isolates listener from ambient sounds.

It is ideal for use with racing scanners and metal detectors. The features include volume control on earcup for easy level adjustment,

Stereo/Mono switch for added flexibility and single entry, 8 foot coiled cord.

* Passive noise reduction stereophone system isolates listener from ambient sounds

* Volume control on earcup for easy level adjustment

* Ideal for use with racing scanners and metal detectors

* Stereo/mono switch for added flexibility

* Single-entry, 8-foot coiled cord