--- product_id: 379307046 title: "KPH40 Utility On-Ear Headphones, Stealth Grey, Interchangeable Cord" brand: "koss" price: "₩84956" currency: KRW in_stock: true reviews_count: 13 category: "Koss" url: https://www.desertcart.kr/products/379307046-kph40-utility-on-ear-headphones-stealth-grey-interchangeable-cord store_origin: KR region: South Korea --- # Open-back design for immersive sound Ultra lightweight stainless steel chassis Detachable cords for versatile connectivity KPH40 Utility On-Ear Headphones, Stealth Grey, Interchangeable Cord **Brand:** koss **Price:** ₩84956 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your audio game with Koss KPH40 — where retro style meets future-ready sound. ## Quick Answers - **What is this?** KPH40 Utility On-Ear Headphones, Stealth Grey, Interchangeable Cord by koss - **How much does it cost?** ₩84956 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/379307046-kph40-utility-on-ear-headphones-stealth-grey-interchangeable-cord) ## Best For - koss enthusiasts ## Why This Product - Trusted koss brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Legacy of legendary sound:** Built on decades of Koss innovation, these headphones deliver the iconic sound quality trusted by audiophiles worldwide. - • **Customizable fit and style:** Choose from standard or oversized cushions in vibrant colors to match your mood and maximize comfort. - • **Audiophile-grade sound clarity:** Experience crystal-clear highs and deep bass from 15Hz to 25kHz, bringing your music to life with every note. - • **All-day comfort with retro flair:** Soft foam ear cushions and a sleek stealth grey design ensure you stay stylish and comfortable during marathon listening sessions. - • **Seamless multi-device compatibility:** Switch effortlessly between USB-C, 3.5mm, and Bluetooth devices with the innovative detachable cord system. ## Overview The Koss KPH40 Utility On-Ear Headphones combine an open-back design and ultra-lightweight stainless steel chassis to deliver high-fidelity sound from 15Hz to 25kHz. Featuring a detachable cord system compatible with USB-C, 3.5mm, and Bluetooth devices, these headphones offer versatile connectivity and customizable comfort with soft foam cushions available in multiple sizes and colors. Perfect for professionals and audiophiles seeking premium sound and style in a sleek stealth grey finish. ## Description Buy Koss KPH40 Utility On-Ear Headphones, Stealth Grey, Interchangeable Cord | Lightweight, Ultra-Wide Frequency Response, Stainless Steel Adjustable Headband: On-Ear Headphones - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Incredible Value in Hi-Fi - TLDR: How does a product at such a low price point sound THIS good?!?! Quality: These, out of the box, look like $5 headphones from the early 2000's. But do not let looks decieve you. They are the best value in hifi. The build is reassuringly solid with the Teflon coated steel headband and the linguine cable. No complaints at the price at all. Comfort: Out of the box, they are a bit tight on my ears, but with a bit of bending of the headband they fit just fine. I would highly recommend modifying these with a few things I will mention later. Stock they are comfortable enough and I'd say you could wear them for an hour or two. Sound: Out of the box, the sound is very good. To the point that I was more surprised than I expected to be, even after reading many reviews. They have this open characteristic and sound depth that you don't expect from something that looks like this. If I were to describe the stock sound I'd say, slightly warm with a bit of bass bloat and a bit of sibalance. Great for the price for sure. Modified Sound: Now let's talk about replacing the earpads. Get Yaxi pads... just do it... I've switched back to stock a couple times to test. But man, do they really MAKE these headphones. They lose a little bit of the low-end and a bit of the highs. But the overall sound is worth it. What you get is a warm sound that you can listen to for hours without fatigue. I reach for these any time I want to just lay back and listen. Both male and female vocals just sound right with these pads. If you like electronic music, you may be missing something, but for pretty much anything else, you'll love these with Yaxi pads. Modifications: If you're like me, you'll love these for the ability to tinker. I've added a Hundo headband and I'm considering replacing the cable with a balanced mmcx one as well. There is such an aftermarket for these that you will never get bored. The headband makes them even more comfortable. I am also really considering building another set with KSC75 drivers to see what the extra treble does (I'm a beyerdynamic fan so I'm not afraid of the extra brightness). Overall: If you just want a good headphone, get these. If you like to tinker, get these. If you have $1k+ headphones, get these. JUST GET THESE! I cannot stress enough how much I like these headphones and how much they punch above their price. And if you like the sound, get into modding them. Yaxi pads will make these into something you'll reach for over WAY more expensive sets, trust me... Review: Great Koss sound! Found the perfect cable extension. - I wanted a lightweight & comfortable, affordable, yet great-sounding pair of on-hear headphones to sit at my desk (not travel) with. Fortunately, Koss came up in one of my many searches and I suddenly remembered my very first pair of headphones for my very first stereo back in the late 70's. They surprisingly blew away all the competition back then, even Pioneer, Panasonic and Sony headphones. Sounded like you were right in the concert hall! So I looked at all the latest offerings by Koss, and really appreciated the long review for this pair by the top reviewer 'Ender'—comparing different models of Koss & other headphones. (I don't have time to be an audiophile, I just want to enjoy my music collection in iTunes while sitting at the computer). I immediately ordered these headphones. I knew I would also want to extend the cable, but waited until after they arrived to see the size and types of plugs they were fitted with. (The Q&A for this product in regard to that was too technical & confusing to follow.) These headphone did not disappoint! They have that great Koss sound, with a comfortable lightweight band on my head, which gratefully doesn't get snagged in my thick curly hair. Don't let the appearance of the thin foam earpads fool you— they are comfy, secured well and transmit the audio clearly. (UPDATE: I had initially tried adding a pair of Yaxi pads as suggested by another helpful reviewer, but those would not stay on, and were so thick the sound was being muffled. Stick with the OEM earpads!) Next up was to find a longer extension cable that fit. Curious that Koss doesn't offer anything—even on their website. I first noted that the tip that plugs into the cable that is permanently attached to the headphones is 2.5mm (male) and the other plug that goes into your computer, music device, etc. is 3.5mm (thicker plug), also male. Then I had to learn the difference between TRRS (3 black rings on the tip of the plug) and TRS (2 black rings). So the search was on for a quality extension cable with a 2.5mm male TRRS plug and a 3.5mm male TRS plug—which is exactly what these headphones require. I found only one such cable on desertcart—ASIN: B08MX53T1T and took a chance despite the ridiculous product name. Turns out it is of solid build and does not diminish the sound quality of these Koss headphones. Total length of combined straight & coiled cord is 51 inches, not stretched. Minimal upgrade costs and these headphones are customized for my comfort & listening pleasure! I recommend all of these parts, but probably not as a mobile on-the-go setup—I'm not sure the headphones would hold up to that, they seem too fragile for traveling with. (The extension cable would certainly hold up, though.) Enjoy, and I hope this helped! ## Features - Open-Back, On-Ear Design, Retro Look - Ultra Lightweight, Stainless Steel Chassis - Audiophile Sound Performance - Soft, Foam Ear Cushions - 3.5mm Utility Cord Included ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09KZC94X1 | | Additional Features | Lightweight | | Age Range Description | Adult | | Antenna Location | Everyday Use, Traveling, Exercising, Recording | | Audio Driver Type | Dynamic Driver | | Best Sellers Rank | #4,085 in Electronics ( See Top 100 in Electronics ) #74 in On-Ear Headphones #332 in Earbud & In-Ear Headphones | | Brand | Koss | | Brand Name | Koss | | Built-In Media | Cable | | Cable Features | Detachable | | Color | Stealth Black | | Compatible Devices | Devices with 3.5mm audio jack, USB-C port, or Lightning port | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Media Control | | Controller Type | Wired | | Customer Package Type | FFP | | Customer Reviews | 4.3 out of 5 stars 1,360 Reviews | | Ear Placement | On Ear | | Earpiece Shape | Rounded, flat or slightly curved surface | | Enclosure Material | Stainless Steel | | Form Factor | On Ear | | Frequency Response | 25000 hertz | | Headphone Folding Features | On Ear | | Headphone Jack | 3.5 mm Jack | | Headphones Ear Placement | On Ear | | Impedance | 60 ohm | | Item Weight | 0.11 kg | | Manufacturer | Koss | | Model Name | KPH40 Utility Parent | | Model Number | KPH40 Utility Parent | | Noise Control | None | | Number of Items | 1 | | Sensitivity | 101 db | | Style Name | open-back | | UPC | 021299197455 | | Unit Count | 1 Count | | Warranty Description | Limited Lifetime Warranty | | Water Resistance Level | Not Water Resistant | | Wireless Technology | Bluetooth | ## Product Details - **Brand:** Koss - **Color:** Stealth Black - **Ear Placement:** On Ear - **Form Factor:** On Ear - **Impedance:** 60 ohm ## Images ![KPH40 Utility On-Ear Headphones, Stealth Grey, Interchangeable Cord - Image 1](https://m.media-amazon.com/images/I/51Sm7vzebiL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Do these use same speakers as Porta Pros?** A: Officially, I have never seen Koss admit that Kph40 and Porta Pros have the same driver. But having both, I tested them on a Steely Dan song "Lunch with Gina" and I can't tell any difference in the sound. So I think it comes to which head band you prefer, the folding Porta Pros or the single band 40. **Q: Where can you buy a balanced cable for the KPH40 utility headphones?** A: Just got mine KPH40 and checked the cable. It seems that 2.5mm TRRS socket is indeed balanced, but configured in 3.5mm standard (T: R+, R: L+, R: L-, S: R-). So it's NOT compatible with 2.5mm balanced output (like FIIO BTR5) using "straight" cable. You would have to use crossed cable for this setup (haven't found one yet), or use device with 3.5mm balanced standard. **Q: Does anyone know when these will be back in stock? I would love to get a pair! :-)** A: I Believe these are Quite available now (compared when 1st introduced !) either through Amazon- or Koss Factory Direct. **Q: Koss should make a bluetooth ‘pendant’ for the utility series. that would be the icing. does any know of a bluetooth receiver with 2.5 mm termination?** A: There are none. The problem here is you need to convert the 2.5mm trrs configuration with a wire. You can get any wire which fits hd598 either balanced or unbalanced. Then only connect to a Bluetooth pendant. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Incredible Value in Hi-Fi *by M***. on May 17, 2024* TLDR: How does a product at such a low price point sound THIS good?!?! Quality: These, out of the box, look like $5 headphones from the early 2000's. But do not let looks decieve you. They are the best value in hifi. The build is reassuringly solid with the Teflon coated steel headband and the linguine cable. No complaints at the price at all. Comfort: Out of the box, they are a bit tight on my ears, but with a bit of bending of the headband they fit just fine. I would highly recommend modifying these with a few things I will mention later. Stock they are comfortable enough and I'd say you could wear them for an hour or two. Sound: Out of the box, the sound is very good. To the point that I was more surprised than I expected to be, even after reading many reviews. They have this open characteristic and sound depth that you don't expect from something that looks like this. If I were to describe the stock sound I'd say, slightly warm with a bit of bass bloat and a bit of sibalance. Great for the price for sure. Modified Sound: Now let's talk about replacing the earpads. Get Yaxi pads... just do it... I've switched back to stock a couple times to test. But man, do they really MAKE these headphones. They lose a little bit of the low-end and a bit of the highs. But the overall sound is worth it. What you get is a warm sound that you can listen to for hours without fatigue. I reach for these any time I want to just lay back and listen. Both male and female vocals just sound right with these pads. If you like electronic music, you may be missing something, but for pretty much anything else, you'll love these with Yaxi pads. Modifications: If you're like me, you'll love these for the ability to tinker. I've added a Hundo headband and I'm considering replacing the cable with a balanced mmcx one as well. There is such an aftermarket for these that you will never get bored. The headband makes them even more comfortable. I am also really considering building another set with KSC75 drivers to see what the extra treble does (I'm a beyerdynamic fan so I'm not afraid of the extra brightness). Overall: If you just want a good headphone, get these. If you like to tinker, get these. If you have $1k+ headphones, get these. JUST GET THESE! I cannot stress enough how much I like these headphones and how much they punch above their price. And if you like the sound, get into modding them. Yaxi pads will make these into something you'll reach for over WAY more expensive sets, trust me... ### ⭐⭐⭐⭐⭐ Great Koss sound! Found the perfect cable extension. *by C***S on July 7, 2023* I wanted a lightweight & comfortable, affordable, yet great-sounding pair of on-hear headphones to sit at my desk (not travel) with. Fortunately, Koss came up in one of my many searches and I suddenly remembered my very first pair of headphones for my very first stereo back in the late 70's. They surprisingly blew away all the competition back then, even Pioneer, Panasonic and Sony headphones. Sounded like you were right in the concert hall! So I looked at all the latest offerings by Koss, and really appreciated the long review for this pair by the top reviewer 'Ender'—comparing different models of Koss & other headphones. (I don't have time to be an audiophile, I just want to enjoy my music collection in iTunes while sitting at the computer). I immediately ordered these headphones. I knew I would also want to extend the cable, but waited until after they arrived to see the size and types of plugs they were fitted with. (The Q&A for this product in regard to that was too technical & confusing to follow.) These headphone did not disappoint! They have that great Koss sound, with a comfortable lightweight band on my head, which gratefully doesn't get snagged in my thick curly hair. Don't let the appearance of the thin foam earpads fool you— they are comfy, secured well and transmit the audio clearly. (UPDATE: I had initially tried adding a pair of Yaxi pads as suggested by another helpful reviewer, but those would not stay on, and were so thick the sound was being muffled. Stick with the OEM earpads!) Next up was to find a longer extension cable that fit. Curious that Koss doesn't offer anything—even on their website. I first noted that the tip that plugs into the cable that is permanently attached to the headphones is 2.5mm (male) and the other plug that goes into your computer, music device, etc. is 3.5mm (thicker plug), also male. Then I had to learn the difference between TRRS (3 black rings on the tip of the plug) and TRS (2 black rings). So the search was on for a quality extension cable with a 2.5mm male TRRS plug and a 3.5mm male TRS plug—which is exactly what these headphones require. I found only one such cable on Amazon—ASIN: B08MX53T1T and took a chance despite the ridiculous product name. Turns out it is of solid build and does not diminish the sound quality of these Koss headphones. Total length of combined straight & coiled cord is 51 inches, not stretched. Minimal upgrade costs and these headphones are customized for my comfort & listening pleasure! I recommend all of these parts, but probably not as a mobile on-the-go setup—I'm not sure the headphones would hold up to that, they seem too fragile for traveling with. (The extension cable would certainly hold up, though.) Enjoy, and I hope this helped! ### ⭐⭐⭐⭐ The Only Thing Hurting Them is the Hype *by J***S on December 4, 2025* The Koss KPH40 headphones are really good for what they are — a lightweight, budget headphone. If you ended up here after watching a glowing review by a tech influencer stating that these compete with $200 cans, you will probably be disappointed. They just don't, especially if you appreciate strong bass. Detail in the mids and highs are outstanding; no notes. Crisp, sparkly, but not fatiguing. The low end lacks any 'oomph.' I suppose that is mostly to do with how open they are. There is none of the sound pressure you feel from over-the-ear sets. If you try to force them with EQ, you get a ton of distortion. Their comfort is amazing. That is what you get in the trade for the bass, and I think the compromise is a fair one in the right usage case. I forget that I'm wearing these. They're a dream. Getting them adjusted properly is a bit fidgety, but it can be done. They're so light, the clamp force is just right, and the ear pads are soft & breathable. No noise cancellation to speak of; you will be very aware of your surroundings. Whether that is a positive or negative is up to you. Avoid using at high volumes in quiet public places, sound bleeding is significant; don't be *that* person. These are great for casual listening. Teleconferencing. I think they would be amazing for gaming. I have headphones that sound better for not a lot more money, but they're big, hot, and uncomfortable. I reach for the Koss KPH40 far more often. They are not "the best headphones under $200!!!!," but they may be the best for you during most points of the day. ## Frequently Bought Together - Koss KPH40 Utility On-Ear Headphones, Detachable Interchangeable Cord System, Retro Style, Ultra Lightweight Design (Stealth Black) - YAXI EARPADS for Koss PORTAPRO (Black) - Koss KSC75 Portable On-Ear Clip Headphones, Retro Style, Ultra Lightweight, Silver and Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/379307046-kph40-utility-on-ear-headphones-stealth-grey-interchangeable-cord](https://www.desertcart.kr/products/379307046-kph40-utility-on-ear-headphones-stealth-grey-interchangeable-cord) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-10-10*