Headphones
100+ SoldSelling Fast!
Koss QZ99 Over-Ear Wired Headphones
Free Delivery
3 Months warranty
Free Shipping
Free 14-Day Returns

Shipping options

OriginSingapore

About this item

Product Name

Koss QZ99 Over-Ear Wired Headphones

Color

Black

Type

Ear-Cup (Over the Ear)

Maximum Frequency

20

Number of Earpieces

E-A-R-Cup (Over the E-A-R), Headband

Sensitivity

102dB

Minimum Frequency

40

Refurbished Tech That is Certified & Affordable


At Reebelo, you will always find high-quality, certified refurbished electronics tested by our expert refurbishing partners. These pre-owned products are professionally cleaned and inspected. Refurbished with Reebelo guarantees buyer satisfaction, battery health, and reduced negative impact on the environment.


What to look for in pre-owned electronics?

Originality & Quality. All pre-owned electronics at Reebelo are guaranteed original. They're 100% functional and undergo rigorous 70+ quality checks before shipping.


What are the carbon footprint savings of used electronics?

You save 70% of the carbon footprint of a new device by buying refurbished and reducing demand for new production.


OVERVIEW:
The QZ99 headphones from Koss provide high-quality audio and exceptional noise isolation in a comfortable design. The headphones use neodymium drivers to provide detailed audio with wide frequency response. A stereo/mono selector switch provides versatility, while a built-in volume control offers a convenient way to quickly adjust volume levels.
The padded, adjustable headband provides a secure and comfortable fit. The closed-back earcups and thick around-ear Pneumalite ear cushions provide long-lasting comfort and a high degree of noise isolation, allowing you to focus on your music instead of your environment. The single-sided coiled cable provides a variable amount of slack and is resistant to tangles. The gold-plated 3.5mm mini plug and included 1/4" adapter provide wide compatibility with a variety of consumer and professional electronic devices.
FEATURES:
- Neodymium drivers provide detailed audio with a wide frequency response
- A stereo/mono selector switch provides versatility, allowing you to use the headphones with mono or stereo devices
- Built-in volume control offers a convenient way to quickly adjust volume levels
- Padded, adjustable headband for a secure and comfortable fit
- Closed-back earcups and thick around-ear Pneumalite ear cushions provide long-lasting comfort and a high degree of noise isolation
- Single-sided coiled cable provides a variable amount of slack and is resistant to tangles
- Gold-plated 3.5mm mini plug and 1/4" adapter provide wide compatibility with a variety of consumer and professional electronic devices

Frequently Asked Questions

Get the same great performance and features as new, for a fraction of the price. A certified pre-owned Koss QZ99 Over-Ear Wired Headphones is a smarter, more sustainable way to upgrade without breaking the bank. At Reebelo, every product is professionally cleaned, quality-tested, and backed by our warranty and 30-day free returns, so you can shop risk-free and ensure your purchase is the perfect fit. It's better for your budget, better for the planet, and always risk-free.
Every purchase from Reebelo includes a Vendor Warranty of up to 12 months covering functional defects, giving you peace of mind and protection against unexpected issues. For tech products, our warranty covers all functional defects under normal use, as long as there's no physical or water damage by the customer. All products with batteries come with at least 80% capacity for reliable daily use. Many products offer upgrade options to 90% or 100%. You're covered for 12 months against battery failure and overheating. Want extra protection? Add our ReebeloCare Extended Warranty, an enhanced coverage plan that includes accidental damage from drops, spills, and other mishaps not covered by the 12-Month Vendor Warranty, available on select products.
Absolutely! Every Koss QZ99 Over-Ear Wired Headphones from Reebelo undergoes up to 70 rigorous quality checks, including professional inspection, cleaning, and repair to ensure it meets the highest standards of functionality. We work with trusted, certified vendors to guarantee top performance and long-lasting reliability, so you can enjoy your product with complete confidence.
At Reebelo, you can save up to 70% off retail prices on a Koss QZ99 Over-Ear Wired Headphones, all while enjoying the same top-tier quality and performance. We're proud to offer certified pre-owned products from the brands you love — affordable, reliable, and thoroughly tested. Want to boost your savings even more? Trade in your old product with Reebelo and make your next upgrade even more affordable.
Purchasing a certified pre-owned Koss QZ99 Over-Ear Wired Headphones is one of the most effective ways to reduce waste and minimize your carbon footprint. By giving high-quality products a second life, you're helping prevent valuable materials from ending up in landfills, where they can take centuries to decompose and release harmful toxins into the environment. Reebelo is committed to supporting a more sustainable, circular economy, where products are reused, refurbished, and kept in circulation for longer. This not only conserves resources but also reduces the need to manufacture new items, cutting down on energy consumption, raw material extraction, and greenhouse gas emissions. Make a smarter, greener choice — every certified pre-owned product you buy helps create a more sustainable future for all.