Do these use same speakers as Porta Pros?

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.

Where can you buy a balanced cable for the KPH40 utility headphones?

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.

Does anyone know when these will be back in stock? I would love to get a pair! :-)

I Believe these are Quite available now (compared when 1st introduced !) either through Amazon- or Koss Factory Direct.

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?

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.

Desertcart Logo

Deliver to Argentina

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🎧 Elevate your audio game with the Koss KPH40 — where utility meets style.

DURABLE STYLISH - Stainless steel build in stealth grey blends rugged durability with sleek modern aesthetics.
FEATHERLIGHT COMFORT - At just 109 grams, wear all day without fatigue—perfect for busy professionals on the move.
NO BATTERY NO HASSLE - Pure wired audio with zero charging worries—always ready when you are.
CUSTOMIZABLE CONNECTIVITY - Choose from 3.5mm, USB-C, or Lightning cords with in-line mic and remote for ultimate versatility.
SEAMLESS DEVICE SWITCHING - Swap cords effortlessly to connect with any device you own—future-proof your audio setup.

The Koss KPH40 Utility On-Ear Headphones deliver a lightweight, no-compromise wired listening experience featuring a detachable, interchangeable cord system compatible with 3.5mm, USB-C, and Lightning connections. Designed for professionals who demand flexibility, comfort, and durability, these headphones weigh only 109 grams and include a stainless steel frame for long-lasting use without batteries or compatibility issues.

Specifications

Headphones Jack	3.5 mm Jack
Model Name	KPH40 Utility
Connectivity Technology	Wired
Age Range (Description)	Adult
Material	Stainless Steel
Recommended Uses For Product	Exercising, Running
Compatible Devices	Tablets, Cellphones, Laptops, Smart Speakers
Cable Feature	Detachable
Item Weight	0.11 Kilograms
Net Quantity	1 Count
Style	On ear
Control Method	Remote
Number of Items	1
Audio Driver Type	Dynamic Driver
Earpiece Shape	On ear
UPC	021299197455
Special Feature	Lightweight
Manufacturer	Koss Corporation
Model	KPH40 Utility Parent
Package Dimensions	21.8 x 15.3 x 5.5 cm; 109 g
Item model number	KPH40 Utility Parent
Hardware Platform	Smartphone
Special Features	Lightweight
Microphone format	Detachable
Batteries Included	No
Batteries Required	No
Cable feature	Detachable
Item Weight	109 g

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.