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✓ Vetted 7.6/10 TrustScore

✓ KOSS Stereophones

Electronics & Gadgets

Koss makes headphones, earbuds, and wireless audio gear, including retro-inspired and studio designs.

📅Founded 1958🏢HQ: Milwaukee, Wisconsin, USA👥100+ employees📈Public — OTC: KOSS💰Revenue ~$18M (2023)

Why we recommend them

Koss offers a wide range of headphones spanning retro-styled classics like the Porta Pro to modern wireless and noise-cancelling models. With over 60 years in the audio business, they cater to everyday listeners, gamers, educators, and audiophiles alike. Free 3D-printable accessories and detachable cord systems add extra flexibility for existing owners.

✓Wide lineup: earbuds, on-ear, over-ear, wireless, and gaming headsets

✓Retro-inspired models like Porta Pro and KPH40 alongside modern wireless options

✓Offers international shipping and free 3D-print accessory files

What we actually verified

7.6/10 TrustScore

✓Money-back guarantee verified

—Free trial available

✓Reachable customer servicePhone 1.800.872.5677

✓No fine-print return conditions

✓No unrealistic claims detected

Vetted 2026-07-15 · How we vet →

Visit KOSS Stereophones →

Straight referral — we earn nothing from this link.

What real customers say

4.1/5 from 8 reviews on Trustpilot

“I'm delighted with Koss jewelry! Koss is a small family business that delivers quality. I'm happy with every purchase and I've made many. (I *love* the bracelets!) Koss' communication and packaging are always excellent, shipping is prompt, and the jewelry is a delight to wear.”
“I ordered the rainbow and shine for my wife and when it arrived I gave it to her, she was speechless with the vibrant colors and put them on instantly and shows everyone she sees. She totally loves them!!!”
“Honestly 3.5 stars. My BT740iQZ started malfunctioning after about seven months. When I reached out about the warranty, customer service was responsive and shipped out a replacement quickly. (First, though, I had to pay to ship my old headphones to the company.) When I received m”
“I was loving the KOSS KSC75 over-the-ear headphones. The sound and fit was so much better than earbuds. But on 2/19/24 I lost my charging cord at the gym when it fell out of my pocket. On 2/20 I called Koss USA Customer Service (1 (800) 872-5677) and asked to buy a replacement ch”
“I bought KSC35 Wireless from the KOSS online store. Paid delivery to Estonia. KOSS sent a UPS tracking number, none of the companies working in Estonia with UPS recognized this number. They all said that the shipment did not leave the United States, although tracking showed that ”

Independent review excerpts via Trustpilot — refreshed automatically · last checked 2026-09-14. Ratings are shown as-is, good or bad.

Common questions about KOSS Stereophones

Is KOSS Stereophones legit and safe to buy from?

Yes — KOSS Stereophones passed the WhatiseBrokering.com vetting checklist (try before you buy, no fine-print returns, a real way to reach them, realistic claims only) before being listed. We remove companies that stop meeting the standard. Independent Trustpilot reviewers rate KOSS Stereophones 4.1/5 across 8 reviews — shown on this page as-is, good or bad.

Can I get my money back from KOSS Stereophones if it's not right?

Yes — our vetting verified a money-back guarantee published on KOSS Stereophones's own site, with no fine-print return conditions like "unopened" or "original packaging" detected at the time of vetting.

How do I reach KOSS Stereophones if something goes wrong?

KOSS Stereophones publishes a real customer-service contact (phone or email) — that's a listing requirement. If you can't get a response, tell us at [email protected] and we'll review their listing.

Why is KOSS Stereophones listed on WhatiseBrokering.com?

We discovered and vetted KOSS Stereophones ourselves. They don't pay us anything — they're listed purely because they meet the standard.

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