• Koss QZ-99 Technology Stereo Headphone
  • Koss QZ 99 Technology Stereo Headphone 300/500
  • Koss QZ 99 Technology Stereo Headphone Left/500
  • Koss QZ-99 Technology Stereo Headphone
  • Koss QZ 99 Technology Stereo Headphone 300/500
  • Koss QZ 99 Technology Stereo Headphone Left/500

Shipping Information

The shipping process is fully robotic and orders are normally pulled and shipped quickly in 7 different warehouses across the US and then dropped in sealed USPS, UPS and FedEx containers for pick-up on the next business day. High volume or backordered items may have additional shipping delays. Once pulled, orders cannot be stopped, however you can return orders for refund unopened if you have changed your mind. Tracking normally is sent / updated within 48 hours of pick-up. Delivery is normally 3-10 business days after leaving the warehouse, however carrier delays may occur. Shipping may take longer in rural areas, due to carrier delay, weather or acts of God. Weekends and Holidays do not count as business days and have no pickup, movement or delivery.

Covid 19 Update — We have seen slowdowns and backlogs in package pickup, sorting, scanning and delivery by UPS, Fedex and USPS caused by worker shortages and facilities disruption due to the Covid 19 Pandemic. Some UPS and USPS hubs are no longer scanning all packages, as a result some tracking will show nothing until delivery.

Koss QZ-99 Technology Stereo Headphone

MSRP: $59.99
Sale: $57.40
Your Savings: $2.59


In Stock

Koss QZ-99 Technology Stereo Headphone MFG: Koss
UPC: 021299134122

  • Wired
  • 60 Ohm
  • 40 Hz 20 kHz
  • Gold Plated Connector
  • Binaural
  • Ear-cup
  • 8 ft Cable

* ground shipping normally takes 3-10 business days, depending on destination

Click here to view our Return Policy
Click here to view our full Terms of Sale


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.

Tech Specs

Manufacturer Koss Corporation
Manufacturer Part Number 134122
Manufacturer Website Address http://www.koss.com
Brand Name Koss
Product Name QZ-99 Technology Stereo Headphone
Product Type Headphone
Technical Information:
Connectivity TechnologyWired
Cable Length8 ft
Sound ModeStereo
Impedance60 Ohm
Minimum Frequency Response40 Hz
Maximum Frequency Response20 kHz
Connector PlatingGold Plated
Earpiece TypeBinaural
Earpiece ControlsVolume
Earpiece Sensitivity102 dB
Host InterfacePhono
Physical Characteristics:
Form FactorEar-cup
Weight (Approximate)15 oz
Package Contents
  • Connector coupler
Additional Information
  • Passive Noise Reduction stereophone system isolates listener from ambient sounds
  • Ideal for use with racing scanners and metal detectors
Limited WarrantyLifetime

Add To Cart To See Price

The "Add to Cart to See Price" message indicates an additional discount is in effect, and this discount is calculated in the Shopping Cart.

You can see this price by adding this item to your shopping cart.

Please be assured that simply adding an item to your cart does not obligate you to buy it--you can always delete the item from your cart if you decide not to purchase it.