The Koss QZ5 are noise cancelling headphones and are mid-range in price and technical specifications for the QZ noise cancelling product line. Designed to reduce the impact of environmental noise through passive noise reduction, the ear cushions and the headband pressure create a seal around the ear. The headphones come with both 3.5mm and 6.4 mm plug and can be connected to most radios and scanners. There is a volume control on the ear piece and a stereo/mono switch on the cord. The headphones come with a lifetime, no questions asked warranty.
- Frequency Response is 40 - 20,000 Hz
- Impedance is 60 ohms
- Sensitivity is 102 db SPL/1mW
- Distortion is
- Cord is 8 feet long, straight with single entry
- Lifetime Warranty
- Volume control on the ear piece