Koss UR40

The Koss UR40 is a featherweight, semi-open wired headphone with best-in-class comfort and a spacious sound for the money. Sound is solid but not amazing, and the build feels cheap. Worth it at the low end of the price range, especially if you just want a comfy desk headphone.

Sound lands in the 71st percentile in our database, which is solid but not spectacular. The semi-open design gives it a wider, more natural soundstage than most cheap closed-backs, and the leatherette seal does add some low-end punch. Bass is present but not boomy. Mids are clear enough for vocals and podcasts. Treble can get a little rough at high volumes, but nothing painful. The 60 ohm impedance means it'll play fine from a phone or laptop, though a little extra power helps it open up. The 98dB sensitivity keeps it easy to drive. Where it falls apart is the mic and connectivity, both near the bottom of our rankings. The 4 foot cable is short and non-detachable, and the mic is basically an afterthought.

Against the QCY H3 or TOZO HT3, the UR40 gets smoked on features. Those two bring ANC, Bluetooth, and app support for similar or less money. The JBL Live 770NC and Sennheiser ACCENTUM are in a completely different league for sound and build, though they cost more. Where the UR40 wins is comfort and that open, airy sound. Most budget wireless cans are closed-back and clamp hard. The UR40 breathes. If you want a cheap wired headphone for a desk or quiet room, it's a decent pick. If you need wireless or noise cancelling, look elsewhere.

Pricing is all over the place. In the US, you'll see them listed anywhere from USD 32 to USD 52 depending on the store. Newegg has the best deal on the yellow version if you're hunting for the low end. In Europe, the spread is even wider, EUR 45 to EUR 70 across four countries. At the low end, this is a fun budget pickup. At the high end, you're getting into territory where better built, more feature-rich headphones live. Shop around before you buy.

The Koss UR40 is a weird little headphone. It's a semi-open, foldable, wired over-ear that weighs almost nothing, 170 grams to be exact. Koss calls it a hybrid design, closed leatherette pads for bass plus screened cups for an open, airy sound. That's a neat trick on paper, and honestly, it mostly works.

For the price, you're getting a 40mm titanium driver and a 15Hz to 22kHz frequency response. It's not going to blow anyone away with detail, but it's a comfortable, easy listen. Just don't expect modern conveniences. No Bluetooth, no app, no ANC. This is a simple, old-school headphone.

Skip the UR40 if you need wireless, noise cancelling, or a decent mic. Commuters, office workers in noisy spaces, and anyone who takes calls on their headphones should look at the QCY H3 or TOZO HT3 instead. Also skip if you're rough on gear, the plastic build won't survive much abuse.

Buy the Koss UR40 if you want a super light, comfortable, wired headphone for home listening on a budget. It's great for long sessions at a desk, podcasts, or casual music listening. The semi-open sound is a nice change from the usual muddy budget closed-backs. Just know what you're getting into: flimsy build, no wireless, and a mic that's barely usable.