From the brand

The Original American Stereophone Company

In 1958 John C. Koss changed the way we all listen to music when he invented the world’s first SP/3 stereophone.
Koss sought to replicate the excitement of a live musical performance, allowing listeners to experience sound as they had never before, bringing them closer to the music they love. Music lovers around the world recognize that dedication to accuracy in sound reproduction as: The Sound of Koss
Porta Pro Collection
Retro Headphones
Utility Series
Wireless Headphones
Best Sellers

Birth of the Stereophone
Before the world’s first SP/3 Stereophone in 1958, John C. Koss developed a portable stereo photograph player with side-wing speakers.

World’s First SP/3 Stereophone
in 1958 John C. Koss invented the world’s first SP/3 Stereophone introducing personal stereo audio to the world.

SP/3X
In 1960 Koss released the predecessor to the SP/3 with a lighter design, more comfortable headband and superior sound quality.

Pro/4AA
In 1970 Pro/4AA set the standard for full-size professional headphones delivering true full frequency performance.

Koss World Headquarters
On June 25, 1971 John C. Koss unveiled the new Koss World Headquarters in Milwaukee, Wisconsin.

HV/1A
In 1974, Koss released the HV/1A the first dynamic headphone capable of reproducing all 10 audible octaves.

Porta Pro
In 1984 the acclaimed Porta Pro was released and set performance and comfort standards worldwide for decades to come.

JCK/300 Kordless System
In 1989 the JCK/300 Kordless Headphone system set the standard for infrared wireless headphones.

ESP/950
In 1990 Koss’s revolutionary ESP/950 electrostatic headphones introduced breakthrough high-fidelity sound.

Pro4S Studio
Carrying on the legacy of the Pro/4 line, 2014’s Pro4S Studio Headphone was specifically designed for audio professionals.

KPH30i
In 2017 Koss released the acclaimed KPH30i featuring an ultra-light weight design with remarkable high-fidelity sound.

Utility Series
In 2021 Koss Utility Series introduced three new headphones allowing listeners to connect via Lightning, USB-C and 3.5mm.

True Wireless Earbuds
In 2023 Koss continued it’s evolution of wireless headphones with the TWS250i True Wireless Earbuds.
Frequency Response – 15-25,000 Hz and Impedance – 16 ohms
Raayzz –
Perfect!
I ordered a pair of pros on Facebook market place, for really cheap, of course I should of know by the price that it was a scam, so to no surprise it ended up being fake AirPods, didn’t even have a real serial number or whatever it’s called, and any time I touched them to take them out they would hang up on people while I was on a call, or change the song, even if I just bumped my ear.. oh and the sound quality was horrible, and worst part all was the noise cancellation didn’t work either!Anyways point being is when I ended up ordering these I was SO relieved, I threw away those fake ones and am in love with these! Their so much more cheaper than going to apple to buy some, but their actually real, noise cancellation works great, they have a legit serial number, the sound quality and clarity of the headphones are amazing! They connected to my phone quickly and easily, they came with different sizes to fit in your ears, and so far the battery life is pretty great, they die at a normal rate, specially cause I use mine a lot! Lol!Anyways hope this helped; would definitely recommend getting these, totes worth the money! 🙂
Raayzz –
Vanessa Evans –
These do not work already. Won’t keep a charge more than 2 minutes
So bummed. Just right outside the return window. Never buy from this seller
Vanessa Evans –
Mrs. Bechard –
Awful!
Let’s start the list with what WASNT wrong with this order- it’s MUCH shorter. The AirPods arrived when it said they would. That’s it. That’s the list. Now, on to why I rated these one star and wish I could rate them as lower.They came to me in a small cardboard box that was unmarked. Fine, I get it they were refurbished. But not even a little bit of bubble wrap to keep them broom banging around the entire time they were in transit? I work for fed ex I know how stuff gets knocked around. Came with a charger cord which is cool except it was a usb-c and I ordered a pair of lightning port AirPods sooooo yeah.The sound quality was what you would expect if you took a tin can, tied a string to it and had someone scream into it from another tin can tied to the other end of the string. I tried to have a conversation with my husband and he could register approximately one out of every 4 words I said. When he spoke, it sounded like he had a mouthful of dry crackers. So the sound quality was trash.None of the controls on the pods worked. Volume? Nope. One push mute? Also nope. I went into the app to make sure *I* wasn’t the problem and also nope. So that was a fail.The battery also was terrible. Two hours max per pod. This is my third set of pods (I’m on my phone A LOT) and I’ve never seen battery deplete so quickly. Not only that but there was NO WARNING before they just died. Normally you get two heads up warnings that your battery is depleting. Not so with this pair. After 2 hours of use just BOOM dead. So mid conversation I had to scramble to remember where I had left my phone or while I was at work I had to stop what I was doing to change out the pod. Just a mess all around.I had gotten a refurb phone so I thought this would be a great way to save a little bit of cash while also cutting down on electronics waste but this was just trash from one end to the other.And let’s not forget the return procedure. It used to be a simple act of taking them to one of the return places in my area. Drop them off, get my money back. Simple. Now, I have to box them up, print a label and BE HOME for UPS to come get them. What a headache, since as I said I work for fed ex M-F. I’m heading to Best Buy to get a new pair of these and give myself a break from this whole trashy experience.
Mrs. Bechard –
Samantha Salinas –
AirPod Pros
They are amazing! I always wanted some and now I got them. The sound quality is beautiful and the noise cancellation is good. They feel nice in the ears and a good fit. They work beautifully and it was definitely worth my money.
Samantha Salinas –
Deneena zbella –
I love these, but…..
I love the fact that these are noise canceling, and when I say noise canceling, I mean noise canceling, you can’t hear anything else going on the battery runs out quickly on the case itself on the old ones the regular ones you could just tap the earbud to switch songs or what not these you have to find a little indentation on the little bitty part that sticks out and click it and it’s not easy to find and they aren’t any easier on your ears then the other ones, so I guess I have to say the only thing that I like about them is the noise canceling and it’s a really good sound so if you wanna shut everything out and go into your own world, these are the buds.. oh, and another great factor is if you lose one your phone will take you exactly to it it’s the weirdest thing it’s cool and it’ll take you to the bud if you lost the bud.. The other ones only took me to the case, which is good for me because I have a habit of losing earbuds!
Deneena zbella –
Evan Camp –
Quality
I love them the sound quality is amazing I got the one I wasn’t expecting but that’s my fault so I not gana blame them but it did come with a small and large on the ear buds so now I am losing them but other than that the are amazing
Evan Camp –
Abby –
would recommend
I would 100% recommend buying this item. The sound quality good. My only little complaint would be that they don’t last more than about 5 hours while I’ve had different ear buds that weren’t Apple product that worked for longer.
Abby –
Kristina Alcon –
Would not stop disconnecting
I tried to save money getting renewed AirPods but the quality was terrible. The left pod makes a static sound when I first put it in, and sometimes randomly during use. Both headphones die quickly, and the absolute worst part is that they disconnect non-stop. I am in the middle of a call and suddenly I can’t hear the other person. I’m watching a movie and it pauses out of nowhere and when I hit play the sounds coming from the my regular phone speaker instead of the headphones. Just honestly spend the extra to get new ones probably.
Kristina Alcon –
Ruben Yahir Hernandez Hernandez –
Después de dos semana tenÃÂa toques falsos en uno de los audÃÂfonos que activaba Siri o pausaba la reproducción, molesto los devolvày pedàreembolso
Ruben Yahir Hernandez Hernandez –
JESUS MANUEL NUNEZ –
El auricular izquierdo perdÃÂa la carga muy rápido y al llegar al 25% se apagaba
JESUS MANUEL NUNEZ –
Mauricio Jhoset –
Compre unos AirPods Pro con la garantÃÂa de que iban a funcionar. Cuando recibàel producto me di cuenta de que un audÃÂfono no funcionaba. Solicite la devolución pero con los gastos de envÃÂo eran muy altos. Trate de comunicarme con la empresa para buscar alguna alternativa y jamás respondieron. Pésimo servicio. No los compren.
Mauricio Jhoset –
Jair mendez –
Únicamente venÃÂa la caja con su cable y almohadillas, y los AirPods ni estuché venÃÂan en el empaque
Jair mendez –