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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

KPH40 Utility On-Ear Headphones, Stealth Grey, Interchangeable Cord | Lightweight, Ultra-Wide Frequency Response, Stainless Steel Adjustable Headband

Product ID: 379307046

Details

Brand
Koss
Color
Stealth Black
Ear Placement
On Ear
Form Factor
On Ear
Impedance
60 ohm

🎧Ultra-wide 20Hz-25kHz freq. response

🪶Lightweight 0.11 kg design

⚙️Stainless steel adjustable headband

13524 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Description

🎧 Elevate your sound game with stealthy style and unbeatable comfort!

AUDIOPHILE GRADE SOUND CLARITY - Experience crisp, dynamic audio with a frequency range that captures every detail from deep bass to sparkling highs.
DURABLE STAINLESS STEEL CHASSIS - Engineered for longevity and style, the adjustable headband ensures a perfect fit and premium build quality.
RETRO INSPIRED OPEN BACK DESIGN - Stand out with a sleek, vintage aesthetic that blends timeless style with modern audio performance.
INTERCHANGEABLE 3 5 MM UTILITY CORD - Customize your setup with a detachable cable compatible with multiple devices, keeping you connected wherever you go.
FEATHERLIGHT COMFORT FOR ALL DAY WEAR - At just 0.11 kg, these headphones stay comfortable through long work sessions or commutes without fatigue.

The Koss KPH40 Utility On-Ear Headphones combine ultra-wide frequency response (20Hz-25kHz) with a lightweight 0.11 kg stainless steel frame and an adjustable headband. Featuring an open-back design and interchangeable 3.5mm cord, these headphones deliver audiophile-quality sound and durable comfort for professionals on the move.

Specifications

ASIN	B09KZC94X1
Additional Features	Lightweight
Age Range Description	Adult
Antenna Location	Everyday Use, Traveling, Exercising, Recording
Audio Driver Type	Dynamic Driver
Best Sellers Rank	#6,577 in Electronics ( See Top 100 in Electronics ) #223 in On-Ear Headphones #533 in Earbud & In-Ear Headphones
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 4.3 out of 5 stars (1,347)
Earpiece Shape	Rounded, flat or slightly curved surface
Enclosure Material	Stainless Steel
Frequency Range	20 Hz - 20,000 Hz
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
Theme	Retro
UPC	021299197455
Unit Count	1 Count
Warranty Description	Limited Lifetime Warranty
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

13524 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

View all Trustpilot reviews