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On-board Controls
Take Control with the ergonomic button array. Integrated mic and auxiliary input adds versatility.
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NFC and Blutetooth Enabled
One touch NFC parting makes the BT540i our most immersive and easy to use wireless headphone, ever.
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Premium Cushions
Adding isolation and lasting comfort, our premium cushions conform to fit.
Wireless Freedom
Powerful personal listening you can take anywhere.
Key Features:
- Wireless
- NFC Enabled
- Koss PLX40 Elements tuned for personal listening
- Built-in microphone
- On-board controls
- Carry case
- 1-Year Limited Warranty
BT540i
The Koss BT540i is the most advanced Bluetooth headphone designed and engineered by the wireless headphone pioneers.
Watch and Learn- "Wow'd"
Read more... - "I love it!"
Read more... - "Wonderful sound quality"
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Customer Reviews 10 item(s)
10 Item(s)
- Wow'd
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Overall
These lightweight bluetooth headphones are awesome! I also wondered about losing the dynamic range going to wireless vs wired and now I kick myself for not checking Koss quality and ingenuity sooner. The sound is unbelievable. With crisp highs and deep solid base, I can't believe it!
Review by Navyguy4688 / (Posted on 10/2/2018) - I love it!
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Overall
Great sound and material quality.
Review by Damoun / (Posted on 8/8/2018) - Wonderful sound quality
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Overall
Do not fear to purchase this wonderful piece of tech,
Clean sound, not too bassy and hasslefree wireless
Review by Edd / (Posted on 2/12/2018) - BT540i Headphones = Great Investment!
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Overall
I purchased this set of headphones during the Cyber Monday deal and they arrived on my doorstep within the same week! The unboxing presentation was a great (re)introduction to the brand and the carrying case provides a great way to keep the headphones in great condition over time.
The BT540i headphones themselves are lightweight and easy to use. Comfortable to wear (over a hat or without), especially for several hours at a time. I was concerned how they'd stay on with winter sports in mind, but they remained in place as I skied downhill reaching top speeds.
The functionality of the button placement is great too, I'm able to quickly and easily find the pause/play button - from there I can select the correct button to advance or replay a song. Additionally, the volume control buttons are in a logical spot as well.
I've successfully paired the headphones to my iPhone 7 and MacBook Pro, they work seamlessly on multiple devices. Charging is simple as well.
Review by JMatt / (Posted on 12/4/2017) - Couldn't ask for more
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Overall
Amazing headphones well with the price
Review by Rd / (Posted on 10/5/2017) - Excellent Product
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Overall
Has the great sound quality you would expect in a set of Koss headphones, my pair lasted me 3 years and that's with taking less care of them (never had them in the case, folded them and carried them in a laptop bag), so if you take good care of them they are bound to last even longer than that.
Review by Alvin / (Posted on 8/31/2017) - Sound, battery life, comfort all great!
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Overall
My 9th pair of Koss headphones (since my first set of Pro 4's in the late 70's) and very pleased with the sound, controls, battery life, and ease of paring. Have different styles for different purposes and environments and this latest addition was a result of wanting to cut the cord while travelling and/or walking / biking. Setup worked flawlessly, battery life is excellent and the sound, while not equal to my studio models is better than expected. Love the onboard controls too! Bluetooth range and connection stability / quality are also excellent. Another great product from the folks who invented the stereo phone!
Review by The sound of Koss without the wires! / (Posted on 8/5/2016) - Great for the price point
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Overall
Well, first I would like to say that these are a great pair of headphones for the price. I tend to listen to a lot of game and movie soundtracks as well as some European metal music, and I'm noticing sounds with these that I didn't hear at all with my Logitech gaming headset (I forgot the model) or my Koss UR22i headset. For only $200, I'm loving the sound quality that these deliver.
PROS: Great sound quality, well balanced lows mids and highs, comfortable on my head and ears (for the most part, see CONS below), seems to be a sturdy design, cord fits in tightly and doesn't move around in the connector
CONS: The ear pads make me sweat and then they get sticky, cord could have been longer
FINAL THOUGHTS: For the most part, I love them. I just wish they would have made the ear pads out of something that didn't fit quite so snugly so I wouldn't sweat against them. The cord could have been longer... However, no matter whether I have them wired or connected via Bluetooth, they sound amazing for the price. I highly recommend these to anybody else looking for a great pair of high quality budget headphones.
Review by D-Web / (Posted on 5/4/2016) - Great Product- Sounds Good
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Overall
This product is great. I only wish their customer service email department was as good as these headphones. Because unlike the headphones, they lack proper response time and professional responses :)
Review by TP / (Posted on 1/13/2016) - Excellent Sound, Excellent Battery, Smart Design
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Overall
I have owned these headphones pretty much since they launched late last year. Although the cost may seem a bit hefty, the value of these headphones are worth far more than the retail value. Firstly, these are the only Bluetooth stereo headphones I've found that can last more than 8 hours on a single charge. To make matters better, is they are extremely lightweight. I'm almost certain that it's not possible for a battery to exist in the device, but sure enough it works. Also, charging through a standard 2.1 amp 5 volt charger takes about 1 hour. Also, the sound is absolutely amazing. If you own, or heard, a pair of ProDJ100, or ProDJ200 (of which I own both) then you'll know what these sound like. Pretty much identical to clean, crisp, sound they provide. Another plus, since it has it's own power source through Bluetooth, no need to carry around an amp for your mobile device. They are plenty loud! I also fell in love with the design of the device. No only is it just as comfortable as the ProDJ200, the buttons for the Bluetooth controls are placed very well. They're easy to find, and the added textures to them make it easy to identify as well. Also, the idea to have a line in for the headphones is great too. It will always work, even when the battery is dead! Now the Bluetooth is excellent, but it does have its quirks. Interference is common when moving around in these. I go through a lot of public transportation, and I've gotten used to the few hiccups every now and then. However, minor interruptions are exactly that; minor. Bluetooth always reconnects seamlessly and the music keeps on playing. NFC is a nice touch for devices that support it. Great way to connect and disconnect your Bluetooth without have to change any settings. Also, if you have a device with the aptx codec, get them. Quality loss on these while playing lossless FLAC is near to none. I don't hear any distortion when I use a supported device. And if there is some distortion, it probably isn't audible to begin with. The regular Bluetooth compression isn't very bad either. MP3s being the most unaffected due to the bandwidth being similar. However, the convenience of having the Bluetooth feature outweighs the negatives. Mainly because call clarity is excellent. Not only can the person on the other end hear me well, I can hear them with no problems at all. Now, if you're looking to see what version of bluetooth these use, my best guess would be 4.0. However, there isn't a great way to test that. So it's pretty much on Koss to give that information. For obvious reasons, these also have a 1 year warranty. It sucks, but it's understandable. Bluetooth technology changes periodically and batteries don't last forever. Depending on the type of battery used in these, these headphones can probably have a life of 5-10 years before the battery becomes useless. Now if only they designed the line in to be on the left ear cup, and not on the right. All in all, these are probably the best headphones to get on the Bluetooth market within this price range. They're solidly built, and definitely worth having.
Pros: Battery Life, Sound, Design
Cons: Bluetooth Interference, Warranty
Review by J. Lopez / (Posted on 3/28/2015)
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The Original American Stereophone Company
Ever since I invented the world's first SP/3 Stereophone back in 1958, Koss Stereophones have been bringing back the excitement of a live performance. Music lovers around the world recognize that dedication to accuracy in sound reproduction as: The Sound of Koss®
John C. Koss, Founder
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