Customers recognize the C400 Wireless Behind-the-Neck In Ear Headphones for their exceptional sound quality, long battery life, and comfortable fit. Many users appreciate the great sound and find the earphones lightweight and easy to use. However, some users have concerns about connectivity issues, microphone quality, and the overall design of the headphones.
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 103 Showing 2,041-2,060 of 2,180 reviews
Rated 1 out of 5 stars
Not the best
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This reviewer received promo considerations or sweepstakes entry for writing a review.
These are the worst headphones ever, the cord keeps falling and the earbuds stick you in the neck. Very poor quality from Sony
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Brand response from SonyListens
Posted .
Hi Sad01, We regret to hear that your device's performance failed to meet your expectations. Sony takes into consideration all feedback to improve the performance and quality of our products and services. We're always looking to make Sony better. We appreciate your time sharing this feedback. ~Ralph
Rated 1 out of 5 stars
Horrible
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Very disappointing!! I returned them the next day. They kept turning off and on. Especially in the middle of a conversation. Hated them.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
This item is a horrible buy.
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This reviewer received promo considerations or sweepstakes entry for writing a review.
No a good choice. This is a horrible item nothing like some LG TONES. Hade to use in a pinch took them right back into the store and returned on the spot.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
I Have Yet to Have A Pair Last More Than 15 Days
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I had to return this item three times in a 45 day period because they died. Caveat Emptor, these headphones are not reliable.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Sony-C400 Wireless Behind the neck Headphones
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Not impressed and completely disheartened with this product. Cheap Quality, difficultly connecting, and not user friendly.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Deep discount store merchandise
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Posted . Owned for 1 year when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought it, took it home, next day I took it back.
It has the look and feel of something that should have a orange "reduced price" tag on it.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Do not recommend
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Posted . Owned for 4 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Terrible quality, you hear more background noise when talking on the phone then you can her the person you’re talking to.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Worse Headset I've purchased
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Posted . Owned for 11 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The worse bluetooth set ever. It sounds like theres a echo when you use them. The cheaper 300/310 Sony version is way better.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
No one could hear me.
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This reviewer received promo considerations or sweepstakes entry for writing a review.
It only worked for me listening to music. No one pob the other end could hear me. They said I sound muffled.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Brand response from SonyListens
Posted .
Hello MsTyL1983,
We regret to hear that you're having issues with this unit. Let's try to isolate the issue by following some troubleshooting steps included on this link:
This reviewer received promo considerations or sweepstakes entry for writing a review.
Less than 6 weeks into purchasing and the right side doesn't work. Device shuts down onit's own, continues to interrupt to advice that device charge is medium.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
This reviewer received promo considerations or sweepstakes entry for writing a review.
Utter garbage, and even worse that it is from best buy because they are the worst!
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Not clear..and people complain that it sounds to l
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I am not satisfied with this product. There is a lot of background interference.
People complain about not being able to hear me clearly.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Worst wireless headphones
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought this product less than 2 weeks ago. It ran out of battery charge. I went to charge it and got nothing: no red light, wouldn’t turn back on. Nothing.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Brand response from SonyListens
Posted .
Hi RabiEdWulph, we're sorry to hear about this. Please refer to the link below for possible troubleshooting steps to fix this issue. We apologize for the late reply. Thanks! ^Ron
This reviewer received promo considerations or sweepstakes entry for writing a review.
These headphones are definitely not for me. The guy in the store told me that they were good, but they just sound so cheap to me...very poor sound quality
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Brand response from SonyListens
Posted .
Hi MadamCJ,
We regret to hear that this unit failed to meet your expectations, Sony takes into consideration all feedback to improve the performance and quality of our products and services. We're always looking to make Sony better. We appreciate your time sharing this feedback.
Regards, Zac
Rated 1 out of 5 stars
Sucks, doesn't work well
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Posted . Owned for 7 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Doesn't sync up to phone well and cuts off with full battery. Bluetooth doesn't correct. The sound goes in and out.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Broke a little over a month later. Not worth it!
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Stopped working a month after purchasing. Now they won't replace it because it's a little over 30 days.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Terrible design
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This reviewer received promo considerations or sweepstakes entry for writing a review.
The ear buds just hang randomly and the sound was absolutely terrible! Sony is overrated... I was very disappointed and returned them immediately!
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Brand response from SonyListens
Posted .
Hi Delo, We regret to hear that it didn't live up to your expectations and had to be returned. Sony takes into consideration all feedback to improve the performance and quality of our products and services. We're always looking to make Sony better. We appreciate your time sharing this feedback. ~Ralph
Rated 1 out of 5 stars
Bluetooth headset
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Posted . Owned for 1.5 years when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Not a very good quality product at all. broke first time wearing them. Sound was muffled and hurt our ears.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Easy to use but very very noisy
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Got that product at a good price but sometimes u get what u pay for. The noise in the background while your talking is very annoying
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Rated 1 out of 5 stars
Complete Piece of Junk
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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.
We’ve bought two this month & both broke within 3 days of use. They also don’t hold a charge for more than 5 hours.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black