---
product_id: 412277143
title: "Koss KPH40 Utility On-Ear Headphones, Detachable Interchangeable Cord System, Retro Style, Ultra Lightweight Design (Stealth Black)"
brand: "koss"
price: "S$93"
currency: SGD
in_stock: true
category: "Koss"
url: https://www.desertcart.sg/products/412277143-koss-kph40-utility-on-ear-headphones-detachable-interchangeable-cord-system
store_origin: SG
region: Singapore
---

# Open-back for natural sound Ultra lightweight 0.11 kg design Detachable 3.5mm cord system Koss KPH40 Utility On-Ear Headphones, Detachable Interchangeable Cord System, Retro Style, Ultra Lightweight Design (Stealth Black)

**Brand:** koss
**Price:** S$93
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game with retro style and future-proof flexibility!

## Quick Answers

- **What is this?** Koss KPH40 Utility On-Ear Headphones, Detachable Interchangeable Cord System, Retro Style, Ultra Lightweight Design (Stealth Black) by koss
- **How much does it cost?** S$93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/412277143-koss-kph40-utility-on-ear-headphones-detachable-interchangeable-cord-system)

## 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

- • **Comfort That Lasts:** Soft foam ear cushions and ultra-lightweight build keep you focused without fatigue.
- • **Retro Meets Modern:** Classic open-back design with a stainless steel chassis for timeless style and durability.
- • **Audiophile-Grade Sound:** Dynamic drivers deliver crisp, clear audio with 25,000 Hz frequency response and 101 dB sensitivity.
- • **Plug & Play Simplicity:** No batteries, no fuss—just pure wired audio with intuitive touch media controls.
- • **Seamless Device Switching:** Detachable cords (3.5mm, USB-C, Lightning) let you effortlessly connect across all your gadgets.

## Overview

The Koss KPH40 Utility On-Ear Headphones combine a retro open-back design with ultra-lightweight stainless steel construction. Featuring a detachable cord system compatible with 3.5mm, USB-C, and Lightning connectors, these headphones offer seamless device switching without compromising audiophile sound quality. With soft foam cushions and a 25,000 Hz frequency response, they deliver comfort and clarity for professionals on the move.

## Description

The Koss KPH40 Utility On-Ear Headphone is part of the Koss Utility Series, an all-new listening experience that features three new headphones, three new cords and one seamless experience where everything works together. No batteries, no audio compromises, no compatibility issues. It's that simple. Included with every Koss Utility Series Headphones is a detachable 3.5mm standard headphone jack cord. Need more options? Bundle the available USB-C or Lightning Utility cords (includes in-line microphone & remote) and connect to other devices you own. Koss Utility Series features a detachable cord system giving listeners the flexibility to seamlessly swap between devices, allowing you to connect to the devices you own now or in the future. What's Included? KPH40 Utility, 3.5mm Utility Cord.

## 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 |
| Age Range Description | Adult |
| Antenna Location | Listen to music, watch movies, phone calls, work on the computer |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | 764 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 |
| Controller Type | Touch control panel |
| Country of Origin | China |
| Customer Package Type | FFP file |
| Customer Reviews | 4.4 4.4 out of 5 stars (993) |
| Earpiece Shape | On-Ear |
| Enclosure Material | Stainless Steel |
| 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 |
| Style Name | open-back |
| Theme | Retro |
| UPC | 021299197455 |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Brand:** Koss
- **Colour:** Grey
- **Ear placement:** On Ear
- **Form factor:** On Ear
- **Frequency response:** 25000 Hz
- **Headphone jack:** 3.5 mm Jack
- **Impedance:** 60 Ohms
- **Model name:** KPH40 Utility
- **Noise control:** None
- **Sensitivity:** 101 dB

## Images

![Koss KPH40 Utility On-Ear Headphones, Detachable Interchangeable Cord System, Retro Style, Ultra Lightweight Design (Stealth Black) - Image 1](https://m.media-amazon.com/images/I/51Sm7vzebiL.jpg)

## Available Options

This product comes in different **Color, Size, Style** 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.

## 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.sg/products/412277143-koss-kph40-utility-on-ear-headphones-detachable-interchangeable-cord-system](https://www.desertcart.sg/products/412277143-koss-kph40-utility-on-ear-headphones-detachable-interchangeable-cord-system)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-12*