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Koss T55959

★★★★☆ 4.4 (5,065)

Neodymium drivers deliver an 18Hz-24kHz frequency response, 16-ohm impedance, and 97dB sensitivity, producing clear treble and deep bass from a lightweight 50g frame. The flexible sling headband allows single-sided monitoring and withstands daily wear, while the 8-foot cord suits home stereo or DJ booth setups. Best for budget-minded DJs and casual listeners needing a durable, long-cord wired headphone, but poor isolation limits it for calls and gaming.

Form Factor over-ear
driver type dynamic
impedance ohms 16
Koss T55959 headphones
42 Overall Score
Also available in:

Snapshot

The 30-Second Version

The Koss UR20 is a $19 over-ear headphone with top-tier comfort and a lifetime warranty. Sound is decent with EQ but weak in the mids and treble out of the box. Worth buying as a budget backup, but skip it if you need a mic or tend to break things.

Pros & Cons

Pros

  • Comfortable over-ear fit that ranks in the top 12% of our database 86th
  • Exceptional value at around $19 with a lifetime warranty 84th
  • Good bass presence and sound isolation from the closed leather cushions 81st
  • Long 3-meter cable gives you room to move 73rd

Cons

  • Fragile adjustment clip mechanism breaks with normal use
  • Weak mid-range and treble without EQ tweaking
  • Mic quality is near the bottom of our database at the 16th percentile
  • Bulky design that feels cheap in spots

What owners think

The Word on the Street

4.4/5 (5065 reviews)
👍 Multiple owners rave about the value, saying the sound quality and comfort far exceed what you'd expect at this price.
🤔 A common theme is that bass is present and enjoyable, but the mid-range and treble need EQ to sound clear.
👎 Several reviewers mention the adjustment clip breaking during normal use, which is the main durability concern.

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has held steady over time
85/100Our AI sentiment readlow confidence · 9 sources · May 2026
1★2★3★4★5★Q3 '14: 5.0★ · 2 reviewsQ4 '14: 5.0★ · 1 reviewQ4 '15: 5.0★ · 1 reviewQ3 '17: 4.0★ · 1 reviewQ3 '19: 5.0★ · 1 reviewQ4 '19: 5.0★ · 1 reviewQ3 '25: 5.0★ · 1 reviewQ4 '25: 5.0★ · 1 review21111111Q3 '14Q4 '14Q4 '15Q3 '17Q3 '19Q4 '19Q3 '25Q4 '25
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 9 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

The 18Hz-24kHz frequency response looks impressive on paper, but real-world sound is more modest. Bass has decent presence and the closed leather cushions help with isolation, but the mid-range and treble are weak out of the box. Several owners mention that a little EQ work brings out noticeably clearer sound. The 16Ω impedance means these run easily off just about anything, and the 97dB sensitivity keeps volume levels reasonable. The 3-meter cable is a nice touch for desktop use, though some users report it kinks over time.

Performance Percentiles

Anc 32.7
Mic 14.7
Build 32.8
Sound 36.8
Battery 46.5
Comfort 86.2
User Sentiment 73.1
Connectivity 44.4
Social Proof 83.6
Affordability 81.4

Specifications

Full Specifications

Design

Form Factor over-ear
Weight 0.1 kg / 0.1 lbs
Ear Cushion Leatherette
Headband Mesh

Audio

Driver Type dynamic
Freq Min 18
Freq Max 24000
Impedance 16
Sensitivity 97
Codecs Koss UR20 Over-Ear Headphones, Flexible Sling Headband, Black

Connectivity

Wireless No
Wired Connector 3.5mm
Cable Length 2.4

Features

Touch Controls Yes

vs Competition

The TOZO HT3 and Bose Bass BH1 NC both offer active noise cancellation and better overall sound, but they cost significantly more. The Truefree HF-10 and TALIX H30 are closer in spirit to the UR20, budget options with similar trade-offs. Where the Koss wins is comfort and that lifetime warranty. Where it loses is build quality and mic performance. The SoundPEATS Cove Pro offers better sound for not much more money, but you give up the Koss warranty and the proven comfort.

Spec Koss T55959 Sony ULT WEAR WHULT900N/B Sennheiser ACCENTUM Plus Nothing Headphone (a) B186 QCY H3 ANC JBL Tune 670NC
Form Factor over-ear over-ear over-ear over-ear over-ear on-ear
Driver Type dynamic dynamic dynamic dynamic dynamic dynamic
Driver Size (mm) - 40 37 40 40 32
Impedance Ohms 16 314 560 16 32 32
Wireless false true true true true true
Active Noise Cancellation - true true true true true
Open Closed Back - closed closed closed closed closed
Bluetooth Version - 5.2 5.2 5.4 5.4 5.3
Battery Life Hours - 30 50 135 60 70
Compare Compare Compare Compare Compare
Product AncMicBuildSoundBatteryComfortUser SentimentConnectivitySocial ProofAffordability
Koss T55959 32.714.732.836.846.586.273.144.483.681.4
Sony ULT WEAR WHULT900N/B Compare 98.579.799.497.377.750.15.899.689.624.9
Sennheiser ACCENTUM Plus Compare 94.873.274.494.987.250.139.997.983.628.9
Nothing Headphone (a) B186 Compare 98.581.490.893.499.93088.51009525
QCY H3 ANC Compare 94.877.874.484.488.986.288.596.489.660.6
JBL Tune 670NC Compare 98.562.474.453.894.786.282.599.198.547.7

Price

Value & Pricing

At $19, this is a no-brainer if you need a spare pair of over-ears for the office or a kid's first headphone. The lifetime warranty alone makes it worth the gamble. But the EUR 42-46 pricing in Europe changes the math completely. At that price, you're competing with headphones that have better build quality and sound. If you can get these for under $25, it's a solid deal. Above that, look elsewhere.

From €41 1 offer across 1 retailer
Amazon 1 offer From €41

Price History

€30 €35 €40 €45 May 29Jul 18Nov 12 €41

Read more

Overview

The Koss UR20 is a budget over-ear headphone that costs about as much as a large pizza. For that price, you get a surprisingly comfortable fit, decent sound isolation, and a lifetime warranty from Koss. It's not going to blow anyone away, but it's not trying to.

Our database puts comfort at the 88th percentile, which is the real story here. These things are light at 50g and the flexible sling headband does its job. Sound quality sits around the middle of the pack, which is honestly fine for a $19 headphone.

Common Questions

Q: Do these headphones need an amplifier?

No. At 16Ω impedance and 97dB sensitivity, they run fine straight from a phone, laptop, or any standard 3.5mm jack.

Q: Are these good for gaming or calls?

Not really. The mic scores in the 16th percentile of our database, so calls will sound rough. For gaming, the weak mid-range and treble mean footsteps and dialogue won't be as clear without EQ.

Q: How durable are these headphones?

The build quality is mixed. The overall construction is solid for the price, but the adjustment clip mechanism is a known weak point that several owners have broken. The lifetime warranty helps offset this risk.

Who Should Skip This

Skip these if you need a headset for calls or gaming, because the mic is one of the worst we've seen at the 16th percentile. Also skip them if you're hard on your gear, since the adjustment clips are fragile and will likely snap. And if you're paying European prices of EUR 42-46, you should look at competitors like the SoundPEATS Cove Pro instead.

Verdict

Buy these if you want a cheap, comfortable pair of wired over-ears for music listening at a desk. The lifetime warranty and solid comfort make them a great backup pair. Skip them if you need a mic for calls, since that's the weakest area at 18.2/100. They're also not ideal if you're rough on gear, because that adjustment clip will snap on you.

Usage Scores

Work (25.4)Calls (16.9)Music (36.1)Overall (42)Budget (68.1)Gaming (29.6)Studio (34.1)Commute (23.4)
  • Work25.4
  • Calls16.9
  • Music36.1
  • Overall42
  • Budget68.1
  • Gaming29.6
  • Studio34.1
  • Commute23.4

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