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Koss

We can deliver Koss products on the same day! Most products are in stock, so you don't have to wait. Place your order from the comfort of your home and have it delivered to your address, to an AlzaBox, or to one of our stores. Why shop anywhere else but on Alza.cz?

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7 reasons to shop for Koss products on Alza.cz

  • We have a wide network of stores across the Czech Republic, where we follow all hygiene measures, as well as contactless AlzaBoxes (pick-up points).
  • You can see the availability of each item right away. Don't forget that we deliver on weekends too.
  • We accept most payment methods, including contactless and cryptocurrency.
  • You can easily return or exchange your product at any of our AlzaBoxes.
  • Need assistance? Our customer support is available 24/7.
  • We complement our range with accessories and additional services.
  • You'll find all the essential information for each product, and for some, user reviews to help with your selection.

What to consider when choosing Koss goods?

When making your selection, don't forget to consider a few aspects that will help you choose the right product. In the left menu, you can use the parametric filter to narrow down the offer to match your preferences. We also recommend sorting Koss products by popularity or price.

Koss brand names you'll find in our offering

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Adapters Koss Adapters Headphones Koss Headphones Laptop Accessories Koss Laptop Accessories Tablet Accessories Koss Tablet Accessories
 
37 Results
Koss CS/195 USB (lifetime warranty) - Headphones
4.2 5×
Koss CS/195 USB (lifetime warranty)
Headphones - with microphone, single-sided handsfree module, closed construction, USB-A, frequency response 20-22000 Hz, sensitivity 102 dB/mW, impedance 32 Ohm, 2.4m cable
Buy with code ALZADNY50 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 50% s kódem ALZADNY50. Klikněte a kód se uplatní automaticky. 600,-
1,199,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK615f1
KOSS KPH/30 Wireless Black - Wireless Headphones
4.0 2×
KOSS KPH/30 Wireless Black
Wireless Headphones - with microphone, over-ear, on-ear, semi-closed construction, Bluetooth 5.2, USB-C, SBC support, volume control, frequency range 15-25000 Hz, battery life up to 20 h
1,999,-
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK126h1
Koss PORTA PRO Wireless 2.0 - Wireless Headphones
4.7 105×
Koss PORTA PRO Wireless 2.0
Wireless Headphones - with microphone, over-ear, on-ear, open construction, Bluetooth 5.2, USB-C, SBC support, call handling, volume control, frequency range 15-25000 Hz, sensitivity 101 dB/mW, impedance 60 Ohm, battery life up to 20 h
-8 % off new 2,299,- New 2,499,-
Buy
Unsealed - in stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK165w1
Koss PORTA PRO - Headphones
4.7 297×
Koss PORTA PRO
Headphones - over-ear design, on-ear, open construction, 3.5 mm Jack, frequency response 15-25000 Hz, sensitivity 101 dB/mW, impedance 60 Ohm, 1.2m cable
959,-
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK165a2
Koss PORTA PRO CZ - Headphones
4.8 219×
Koss PORTA PRO CZ
Headphones - over-ear design, on-ear, open construction, 3.5 mm Jack, frequency response 15-25000 Hz, sensitivity 101 dB/mW, impedance 60 Ohm, 1.25m cable
-5 % off new 849,- New 899,-
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK165b
Koss KE / 10K black - Headphones
3.8 47×
Koss KE / 10K black
Headphones - earbuds, closed construction, 3.5 mm Jack, frequency response 40-20000 Hz, sensitivity 100 dB/mW, impedance 32 Ohm, 1.2m cable
-5 % off new 339,- New 359,-
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK513o3
Koss UR / 40 - Headphones
4.4 52×
Koss UR / 40
Headphones - over-ear design, full‑size (over-ear), open construction, 3.5 mm Jack, 6.3 mm Jack, frequency response 15-22000 Hz, sensitivity 98 dB/mW, impedance 60 Ohm, 1.2m cable
-40 % off new 709,- New 1,190,-
Buy
Unsealed - in stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK025d
KOSS KPH/30 Wireless Black - Wireless Headphones
4.0 2×
KOSS KPH/30 Wireless Black
Wireless Headphones - with microphone, over-ear, on-ear, semi-closed construction, Bluetooth 5.2, USB-C, SBC support, volume control, frequency range 15-25000 Hz, battery life up to 20 h
-13 % off new 1,739,- New 1,999,-
Buy
Unsealed - in stock 1 pcs
Order Code: JK126h1
Koss Port Cush - Headphone Earpads
4.7 685×
Koss Port Cush
Headphone Earpads - compatible with KOSS KSC/35, Porta Pro and SPORTA/PRO, on-ear, thickness 9 mm, material molitan, black colour, 3 páry náušníků in pack - 38 Kč/pcs
229,-
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: JK980
Koss BT/221i grey - Wireless Headphones
3.9 61×
Koss BT/221i grey
Wireless Headphones - with microphone, ear hooks, closed construction, Bluetooth 4.2, track shuffle, call handling, volume control, frequency range 50-18000 Hz, sensitivity 101 dB/mW
Amazing Deal 799,- Save 100,-
Buy
Ordered on request
Order Code: JK997l5
Koss THE PLUG black - Headphones
4.5 56×
Koss THE PLUG black (doživotní záruka)
Headphones - in-ear, closed construction, 3.5 mm Jack, frequency response 10-20000 Hz, sensitivity 112 dB/mW, impedance 16 Ohm, 1.2m cable
+Gift Licence Koss with a value of 199,-
499,-
Currently Unavailable
Order Code: JK250a2
Koss KPH / 25 - Headphones
4.6 43×
Koss KPH / 25 (doživotní záruka)
Headphones - over-ear design, on-ear, semi-closed construction, 3.5 mm Jack, volume control, frequency response 80-20000 Hz, sensitivity 94 dB/mW, impedance 32 Ohm, 1.2m cable
+Gift Licence Koss with a value of 199,-
Great price 390,-
Currently Unavailable
Order Code: JK126h
Koss VC20 Volume Control (24 month warranty) - Adapter
4.6 54×
Koss VC20 Volume Control (24 month warranty)
Adapter - male connectors: 1× jack 3.5 mm, female connectors 1× jack 3.5 mm, straight connector ends
199,-
Currently Unavailable
Order Code: JK978
Adapters Koss Adapters Headphones Koss Headphones Laptop Accessories Koss Laptop Accessories Tablet Accessories Koss Tablet Accessories
 

Koss - additional info

Koss is an American company specialising in the production of headphones. It was founded in 1953 by J.C. Koss in Milwaukee, USA. Initially, the company was involved in the rental of hospital TVs, but soon moved into the field of audio technology thanks to its music-loving owner.

Koss shoots to fame with popular headphones

The first Koss audio products to hit the market were a record player and an aviation headset. It was not long before the company introduced other products, including standard headphones. In the 1960s, Koss headphones were popular with some well-known musicians such as Mel Torme and Tony Bennett. Koss quickly became one of the most respected audio brands in America and around the world.

Major milestones:

  • 1969 - Koss headphones are used during President Nixon's Air Force One trips
  • 1970 - The company moves to new, larger premises.
  • 1984 - The company introduced the Koss Porta Pro, one of its most famous headphones
  • 1986 - Koss develops JCK-200 cordless infrared headphones

The legendary Koss Porta Pro

Koss Porta Pro headphones first appeared in 1984, and in the following years they became some of the most popular headphones on the market. They offered excellent sound quality at a reasonable price. To date, millions of Koss Porta Pro headphones have been distributed worldwide. It is remarkable that they are still sold today in a completely unchanged design.

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