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 6 Showing 101-120 of 210 reviews
Pros mentioned:
Sound quality
Rated 2 out of 5 stars
Just okay TWS earbuds.
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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’m a big fan of Sennheiser. For a long time, I used their HD350s for mixing. I also have their HD6XXs. Sennheiser does audio well, usually. The CX400BT just didn’t do it for me.
I picked these up on sale for $100, which I was very happy about. The style is neat. I like the logo behind the glass look. They’re incredibly light, which for an earbud this size makes them feel cheap.
The sound quality was good, especially for $100. It was one of the more neutral sound signatures I’ve heard in a TWS earbud.
The deal breaker for me was comfort. I could not get these earbuds to stay in well and make a good seal. Now, I’ve got about half a dozen IEMs. I have a lot of different ear tips. Typically, I wouldn’t fret. I would just put a better tip on that I know will create a good seal and stay in my ear. Unfortunately, Sennheiser made the error of utilizing a more proprietary connector for their ear-tips. Rather than being a standard 4-6mm stem that can accommodate a wide variety of ear tips, it’s a really short stem that the ear tips click onto. I did find a pair of foam tips that would fit onto this without coming off, but then the earbuds stuck so far out of my ears I 1) looked ridiculous, and 2) thought they were even more uncomfortable than before.
Ultimately, sound signature alone wasn’t enough to keep me so I returned them.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
No, I would not recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Great earbuds
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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.
Great earbuds with amazing sound quality. Expected nothing less from Sennheiser
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
Its definitely for a Audiophile person
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The sound on these or just different. I'm glad I caught the sale. I paid a hundred dollars for them. Only problem is some connections issues. Its saying connected when its not and the music strart playing from the phone. And won't connect for calls sometimes. I am going to delete the senheiser app. It sucks I think thats the problem. I use my Buds+ for phone calls. Best so far and I've use. And I own allot of earbuds. Buds Pro going back because of the fit. Senheiser stop being over price. This is definitely worth a $100 without the features
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
Clean signature
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Very good headphones especially for clarity of voices and u can hear everything. The bass isn't heavy or too light it's in the middle. If you really like bass tho I wouldn't recommend but all around sound quality these are hard to beat.
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
Good headphones
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I like them the sound is very good , I also like you can use them individually, only thing I had to do was change the ear plug to a smaller one .. the bonus for me I got them on 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
Sound quality is great
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Sound quality is great, but the pairing process can be weird due to the different names appearing in the list.
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
From not an audiophile
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I’m not an audiophile, I am a music lover and I can rate this amazing wireless air buds with five stars, even for calls, I can say these ones are better than earpods, sound quality it’s impressive
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 5 out of 5 stars
Excellent sound quality
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I am really pleased with this set. I listen to music all the time and I'm very picky when it comes to sound quality. The Smart Control is great too. I definitely recommend these earbuds.
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 Ear Buds
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
These earbuds are an excellent device for hearing clarity and very sensitive to touch, even just brushing your hand by them. I bought two pairs for each cell phone I have so I can use these earbuds for several hours each day. They have not caused me any ear wear pain, which is a really nice perk. The price is amazing for this quality of earbud as I have others but the cost and quality did not compare to Sennheiser.
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
overall
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
it’s not waterproof but it’s sounds great with a Cool sound app
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
What’s Cooking
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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 great connectivity sleek comfortable….did I mention amazing clear, hear everything type sound. You won’t be disappointed. Prime steak with the sizzle.
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 Priced Earbuds!
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Outstanding earbuds. I would definitely recommend them for listening to music, or conference calls. I’ve even used them to give virtual presentations without any issues.
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
none
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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.
sound good look good price was good hope this earbud will not break down
No, I would not recommend this to a friend
Pros mentioned:
Sound quality
Rated 4 out of 5 stars
Monti
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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.
Good quality sounds for the price and range is good
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
Sennheiser CX-400 Buds
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
They sound Good, the clarity and fidelity are spot on. Pretty good noise cancelling.
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
Nice
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Love these earbids. Never heard of this brand but they sound awesome. Just wish you couldnuae just the left side only. These only let you use just the right.
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
Good earphones
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Nice pair of earphones below $150.
Worth the money and is of good sound quality
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
No, I would not recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Another winner!
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It may not have the bells and whistle of its big brother (MTW), but the sound quality is the same. And, the 7 hours battery life is good enough for me.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black
I would recommend this to a friend
Pros mentioned:
Bass
Rated 5 out of 5 stars
excellent
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
the ear buds are the bomb. The bass and treble that you can adjust by the app is excellent. I would purchase again although I got these on Deal of the Day.
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 5 out of 5 stars
Much better than Skullcandy!
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Excellent sound! I’ve got their metronome app for my piano that was highly recommended and when I saw the price, I decided to give them a chance.
This review is from Sennheiser - CX 400BT True Wireless Earbud Headphones - Black