Customers praise the CX 400BT True Wireless Earbud Headphones for their exceptional sound quality, comfort, and long battery life. Many users are impressed with the sound quality, describing it as "really good" and "fantastic." The earbuds are also praised for their comfortable fit, with one user saying they "fit nice in my ear." Additionally, the battery life is seen as a major pro, with customers noting that it "is more than enough." While some users wished for a louder volume, the overall sentiment towards these earbuds is overwhelmingly positive.
This summary was generated by AI based on customer reviews.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 4 Showing 61-80 of 210 reviews
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Good headphones for the price
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I used to have AirPods but didn't want to spend $$$ for a new pair, so I researched alternatives. For the money, Sennheiser has a great sound! I use these in the gym on the treadmill, and they are difficult to keep in my ears because there is no way to secure them. Overall, I'm happy with my purchase and the quality.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Comfort, Sound quality
Rated 5 out of 5 stars
Well Balanced sound and comfortable wear for long
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Posted . Owned for 11 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is comfortable to my sensitive ear and fit well for long hours.
The sound is also well balanced.
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 5 out of 5 stars
Be Ready to Enjoy Music Again
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Posted . Owned for 2 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I am a headphone and earbuds collector. As far as true wireless earbuds I own 7 other pairs. In this price range own 3 pairs. These are my favorite without reservation. They just sound great for earbuds. When you listen to hd and ultra HD recordings they shine. 3d recordings are very impressive. If you are looking for the best sounding earbuds in this price range, look no further.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Earbuds
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
These earbuds sound good and they were a good price. The one thing I found is that you can’t use the left earbud by itself, only the right earbud works by itself. I don’t believe I missed anything. They would disconnect when I pulled the right one out of my ear. Other than that, very good product for the price.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 4 out of 5 stars
Sennheiser earbud
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
First time using wireless ear buds. They work great for Listening to music and pod casts. For phone calls, i can hear the caller just fine but they have a difficult tme hearing me. Battery life is great, I use them maybe 1 hour or two a day and they last all week. I would give it five stars but for the phone calls.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Comfort, Sound quality
Rated 5 out of 5 stars
Superb sound and comfort
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Excellent sound quality, top of the class at this price. Comfort is superb as well. All-day-long wear with no discomfort.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Comfort, Sound quality
Rated 5 out of 5 stars
Reliable, comfortable.
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Pairs easily and consistently and sounds great. Eliminates echo on Zoom meetings, fairly comfortable to wear as well
I would recommend this to a friend
Pros mentioned:
Bass, Sound quality
Rated 5 out of 5 stars
Impressed
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Amazing sound stage and resonating bass. And for only $99 wow I’m floored
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Comfort, Sound quality
Rated 5 out of 5 stars
Stay in ear really well. Great sound quality.
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Posted . Owned for 3 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Got these on sale for my wife. She wears them at the gym and she loves them. Great sound quality and comfortable.
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Great pair of earbuds!
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Sound quality on these is excellent; the mobile app, once you get a feel for it, allows seamless transition between paired devices. I really enjoy these (and I got such a great deal on them!). The downside is that they do take some getting used to in terms of comfortable positioning in the ears.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
ScottsSports
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This reviewer received promo considerations or sweepstakes entry for writing a review.
My first wireless earbuds. I grew up in a time where a Sony Walkman was new tech,thought they were so cool..took a minute to realize that I could get up and walk around my apt.and still have music.so so cool.and the quality of the sound is terrific.plus they were on sale.Thank You!!!!
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Great Earbud for the price
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Posted . Owned for less than 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I like the size, not as clunky as Sony 1000XM3. Sound is nice. It’s not as smart as other one. I have to wear right size in order for it to turn on. It doesn’t pause the music when I remove it from my ears. No dropping in and out like Sony.
Great value considering it’s $100 off!
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Bass, Battery life, Comfort
Rated 5 out of 5 stars
I love these headphones!
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This reviewer received promo considerations or sweepstakes entry for writing a review.
When first opening up these headphones and taking a look at them, there was already a lot to be impressed with. I really like the case and how the hinge feels when opening and closing, and the magnet latch feels plenty secure. I love the fact that these charge with a USB-C and not Micro-USB. It is so much faster to charge and that plug is getting to be more and more common. The earbuds are definitely on the more comfortable side of all the pairs I have tried over the years. They fit comfortably on my first attempt at using them, and stayed put. I did not have to change any of the earbud pieces, but there are a total of four different sizes to pick from if you find the first ones uncomfortable. Connecting to my phone was very simple, I had no hiccups there. However as soon as I started playing music, the sound sounded very flat and like it was really lacking. I immediately went back to the box to find the name of the app Sennheiser recommends using in conjunction with these headphones. It seems like the second the app connected to these headphones the sound improved drastically. It was very odd. I made no equalizer adjustments from my phone's sound or my music app. Just simply connecting the app and the headphones got the sound almost to where I was satisfied. When I found the equalizer within the app, I made adjustments to increase the bass and treble and from there I was very happy with the sound quality of these headphones. I am a bit of an audiophile and I tend to always turn up the bass and treble no matter what I am listening to and these were no exception. Once I had the headphones sounding the way I liked them, I went through a variety of genres of music, as well as YouTube videos and movies, all sounded fantastic! Watching an action movie was really impressive as the bass was perfect and it felt like surround sound. I swore I could hear every little noise happening in the movie. Another thing that I loved (found in the app) is the ability to customize the touch controls. I noticed that factory settings of these headphones had nearly opposite touch controls as my other headphones I spend several hours a week using and know the controls really well on. An easy fix though in the app and within seconds I was able to make the touch controls the exact same as my other touch sensitive headphones. I thought that was a very neat function. Overall these are excellent headphones, the comfort, the sound quality, battery life, and ease of use make these a no brainer to recommend. They are extremely versatile, I have been able to wear them while laying in bed, while working out, and while riding a lawn mower and no matter the setting, the sound was great and they stayed in place. I love these headphones.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 5 out of 5 stars
Awesome Earbuds
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Incredible sound very very easy to pair. I have several earbuds, but this one really is awesome
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 5 out of 5 stars
Great Buy At A Great Price
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
These were on sale, which made the decision to buy easier for me. The quality of the music is great. The set up and use of them for music and phone calls takes a little while to learn but it is a nice feature to have. They fit really nice, come with five different ear tip sizes and the case is small and convenient to carry around with you. They are a great buy if your looking for a pair of in ear wireless headphones.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Bass, Battery life, Fit
Cons mentioned:
Water resistance, Wireless charging
Rated 5 out of 5 stars
True Hi-Fi Wireless Earbuds
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Coming from Sennheiser you know the focus is going to be on sound quality above all else on these earbuds and Sennheiser delivered.
Above all else sound quality is the real differentiating factor with these headphones. Music sounds crystal clear, sharp, and precise. The bass is not overpowering and not muddled at all. I’ve tried many truly wireless earbuds and these by far sound the best.
The fit is great as well. They fit a good ways down the ear canal, but don’t hurt. They’re extremely light, so much so you can forget they are there. Again, some of the best fitting wireless headphones I’ve used. They fit really snug as well, i never have a feeling like they are going to fall out, could very well be used for workouts.
The touch controls work really well, you can activate Siri, play/pause, fast forward, skip back, adjust volume, all with a series of taps that aren’t very hard to remember. I really liked how Sennheiser did the controls here.
Battery life is also superb. 7 hours per charge with even more in the case. I’ve never had problems running these things dead.
The app works pretty well. Not much to do other than select the device you want to connect the headphones to, adjust eq, or edit the earbud controls. All pretty easy to use, but nothing groundbreaking here.
At this price point you know there had to be some compromises with how good these things sound. These earbuds don’t have water resistance, wireless charging, or noise cancellation. If any of those are deal breakers then these might not work for you, but if you are looking for a hi quality sounding device, these are a great choice.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Great sound
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Sounds amazing and a great value as compared to other competing earbuds. My only complaint is that they are a little bit chunky and lack features that other wireless earbuds have. If you value sound quality over anything else, these cannot be beat at this price point.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Bass, Comfort, Fit
Rated 4 out of 5 stars
Expected a little better sound
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This reviewer received promo considerations or sweepstakes entry for writing a review.
These sound great but I guess I was expecting just a little better sound from Sennheiser,. We have mics & a wireless guitar system which sound awesome so I thought these would too. While they sound great, at first I thought they were tinny sounding, after downloading the app I was able to adjust them & add bass which improved the sound a lot. They come in a compact charging/travel case & magnetically attach, the case has a power button on it to stop the charging while not in use, I have small ears & they fit perfectly others I have tried were too big or bulky. Comfortable to wear. Range was pretty good, I went outside & walked almost to the edge of our 1/2 acre property & stayed connected. The volume, fast, forward, call buttons are easy to reach & you just tap them to change settings., I just have to remember how many taps for each. Pairing was instant & the app is simple but easy to use. I would recommend them but maybe wait for a sale.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Great gift for your wife
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Posted . Owned for 3 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
These buds have excellent high fidelity sound. Both highs and lows are of the highest quality sound. My only complaint is that I prefer loudness over sound quality. My wife loves these buds because she prefers quality over loudness.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Rated 4 out of 5 stars
Great for watching videos, but average battery.
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Just got into smartphones and simply wanted a decent-sounding pair of earbuds. These have been serving me well on my hour lunch breaks watching videos with no noticeable sound desync from wireless latency on my iPhone 12 between Youtube, Netflix, Hulu, Amazon Prime, Apple TV, or HBO Max.
Didn't think about the battery life too much when I checked the reviews, but regret that now after using them continuously for five hours and getting the low power notification. Definitely wouldn't have bought these if they weren't on sale for $99.98. If these hadn't been on sale, I would've gone with the "Klipsch T5 II True Wireless Sport" to get better battery life despite their slightly lower sound quality.
Overall, these earbuds are delivering great audio quality for $99.98 and their battery life isn't affecting me during general usage.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black