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🎶 Retro style meets next-level utility—hear the difference, feel the freedom.
The Koss KPH40 Utility On-Ear Headphones combine a retro open-back design with ultra lightweight stainless steel construction and a versatile detachable cord system. Engineered for audiophile sound quality with 60 Ohm impedance and 101 dB sensitivity, these headphones deliver punchy bass and clear mids/highs without the need for batteries. Compatible with 3.5mm, USB-C, and Lightning connections, they offer seamless device switching and all-day comfort with soft foam cushions.



















| ASIN | B09KZC94X1 |
| Age Range Description | Adult |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | 1,689 in In-Ear Headphones |
| Box Contents | Cable |
| Brand Name | Koss |
| Cable Features | Detachable |
| Colour | Grey |
| Compatible Devices | Devices with 3.5 mm audio jack, certain Android devices with USB-C, and Apple devices with Lightning connections |
| Control Method | Touch |
| Control Type | Media Control |
| Country of Origin | China |
| Customer Package Type | FFP file |
| Customer Reviews | 4.4 4.4 out of 5 stars (959) |
| Earpiece Shape | On-Ear |
| Enclosure Material | Stainless Steel |
| Frequency Range | 20 Hz - 20,000 Hz |
| Frequency Response | 25000 Hz |
| Headphone Form Factor | On Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | On Ear |
| Impedance | 60 Ohms |
| Is Autographed | No |
| Item Weight | 0.11 Kilograms |
| Manufacturer | Koss |
| Model Name | KPH40 Utility |
| Model Number | KPH40 Utility Parent |
| Network Connectivity Technology | Wired |
| Noise Control | None |
| Number of Items | 1 |
| Product Features | Lightweight |
| Sensitivity | 101 dB |
| Specific Uses For Product | Running, Exercising |
| Style Name | open-back |
| Theme | Retro |
| UPC | 021299197455 |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |
C**E
The sound quality is impeccable!
I had a pair my late grandad and Mum got me Koss headphones similar to these when I was very little for my portable cassette player. But over the years they went missing. But buying this has been the best decision I've made, they sound fantastic and even better than I remember, the bass is punchy and mids and highs are clear but not overpowering, simply better than any other headphones I've used in a long time. Comparing to my very expensive Sony's I very much improve the sound quality on these. You won't regret your purchase and if you want them wireless, get something similar to the FIIP BTR5's.
A**R
Welcome back to the early 80's
Looks can be deceiving, but your ears will be believing. Great sound quality and arguably out perform many top recommended sets costing much, much more. Questionable build quality only minus
J**N
Sound Way More Expensive
Superb sounding portable open backs.I have a pair of Sennheiser 599s which are not high end but are very good. The KPH40s are just as pleasurable to listen to.4.5 stars because the cable sucks.
R**R
Lived up the hype
I was dubious about paying £40 for a cheap looking pair of headphones, but they're the best headphones I've tried to date, even compared to much more expensive ones from big brands. I have the Koss KSC75 and while the sound was good the comfort wasn't there. These are light, comfortable and have the perfect amount of pressure against the ear for me. They also don't trap heat and get sweaty like over ear headphones do. I'm not the best at describing sound but they're punchy and have surprisingly good bass.
M**N
Budget king
I pair these with a Qudelix 5k, and use oratory1990 eq. They are absolutely unbeatable for price to performance. They outclass headphones costing several hundreds of £. It’s actually mind blowing how good they are when you factor in their price. I’m already a fan of the ksc75, but the bass and subbass isn’t their strong point. The kph40 fix this, and are just better in every way. If you want hifi quality audio, but you don’t want to spend an arm and a leg then look no further. You absolutely WILL NOT find better audio quality at such a low price. Honestly these are good enough for 99% of the population. My HD600 aren’t even getting much use since getting these as the bass is just so much better on the kph40.
P**W
Best sound for your pound!
Bought these years ago and was impressed but long ago stopped using them in favour of more expensive and wireless alternatives. Recently happened upon them while looking for something else in the flat and decided to give them another go.....what a revelation!!! The balanced sound on these is so impressive. These are matching iems and headphones that I own for sound that are way more expensive. Obviously, sub bass fans will be disappointed, but if cash is tight , and you don't mind the whole retro , wired vibe , you are in for a very pleasant , sibilant free sound experience! These are cheap , but they don't sound it!
A**W
Loose connection on one driver
Not sure if I just had unfortunate QC with my unit, but it seemed like the cable connection to the left driver was slightly loose, meaning whenever I moved it, it produced an audible click sound (like tapping the cable with your nail)
S**A
Koss is Koss
That’s the headphones I was looking for ages. Fantastic sound, weight like nothing, metal frame. Perfect for my everyday after work walking. Bought also utility lightning cord for my IPhone. Previously used Koss Porta Pro, Koss KPH30. All sounds fantastic. But KPH40 are and looks the best. “Now the walking make sense” ;)
J**O
I had insanely high expectations for these and they surpassed them 10 fold. At such a low cost you literally have nothing to lose
D**.
So good are these, and for travelling they are just perfect
W**I
Doskonałe słuchawki dla ludzi, którzy słuchawek a uszach specjalnie nie lubią.Nie przeszkadzają, nie uwierają, a grają doskonale. Lepsze od Porta Pro. I ładniejsze. Jedne z najlepszych słuchawek jakich słuchałem i w stosunku do tej jakości rewelacyjnie tanie. Choć widzę, że już powoli drożeją, a dodatkowe wymienne kable (np. usb-c) są koszmarnie drogie.
フ**.
Koss KPH40: Su peso ultraligero de tan solo 70 gramos es una de sus características clave, lo que los hace extremadamente cómodos para un uso prolongado. Calidad de Sonido: Ofrecen el "Sound of Koss", que se traduce en un sonido dinámico y natural con graves profundos. 101 dB SPL 60 ohmios 15-25.000 Hz cable de 1,2 m La serie Utility de Koss cuenta con un sistema de cable desmontable que le brinda la libertad de conectarse a los dispositivos que posee ahora o en el futuro con el cable Utility de 3,5 mm incluido o el cable Utility USB-C adicional o el adaptador Utility Bluetooth.
L**.
bought this to replace my short lived kph40 that was bought a year ago. This time bought 2 pairs just incase if tariff hike changes again.
Trustpilot
3 weeks ago
3 weeks ago