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 1 Showing 1-20 of 2,181 reviews
Pros mentioned:
Battery life, Sound quality
Rated 5 out of 5 stars
Bring them back
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Posted . Owned for 1 year when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
These were great the best Bluetooth I've bought in a long time. Sound quality was excellent fast charging and long lasting battery on full charge. Just wish that they didn't discontinue them.
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 3 out of 5 stars
It's an ok device
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Pros:
1. Decent sound quality
2. Lightweight
3. Fitment around neck secure
4. Vibrates on calls
Cons:
1. All controls and indicator lights are on the neck side of device,since it's not moisture resistant,sweat can damage device...they should be on the outside
2. Hard plastic body transfers any rubbing or fabric noise to microphone into you ear
3. The earphone cord themselves transfers noise to your ears also
4. If you try to place it outside of shirt under you collar to avoid skin contact...It get pull out of ear a lot because cord loops from the outside in very high on the device and its always in the way
5. Can't find instructions on how to turn on/off vibrate or power level info
I would not recommend that you buy this at full price, like I did, wait for a sale
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
No, I would not recommend this to a friend
Pros mentioned:
Comfort, Sound quality
Rated 4 out of 5 stars
Easy to Wear!
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
It's a wireless set, & the ear buds are very comfortable. It looks good, feels weightless. When I walk (2-4 miles a day), I listen to stories on Audible, and podcasts. The sound quality is good. I don't know how it will survive daily use yet, as I haven't had it that long. It came with it's own charging cable, and charges by connecting USBS to computer easily. I like it's sleek look. Mine is white.
I would recommend this to a friend
Pros mentioned:
Battery life, Sound quality
Rated 5 out of 5 stars
Love My Sony WI C400 Bluetooth Headphone
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
The battery life is 20 Hours!! Its an inexpensive and lightweight headphone. Sound quality is great and it is soo light. It doesn't tangle.. You forget you have it on until you have a call or start listening to a book or music.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Pros mentioned:
Battery life, Sound quality
Rated 5 out of 5 stars
Very good battery life, and great sound.
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
When I went to purchase the bluetooth to Best buy in pleasant hill, I had the mission of getting a bluetooth with a great battery life for everyday use because I work outdoors and I don't come back home until late night, so I needed a device with a battery life for at least between 10 and 12 hours, and the Sony bluetooth was the perfect fit for it ,and the good sound of it was a extra bonus.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 4 out of 5 stars
Light weight but tuff 0
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The wires feel a bit exposed in my opinion. In order to adjust the langth they leave loops that feel like they could snag and break. But i have slept with them on wore them for wrk and no damage to this point . Great battery life and super light weight. Clean simple controls for pause play ect. All in all really good deapite the sketch feelings about the wires
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 4 out of 5 stars
Good
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Their built-in Bluetooth technology lets you stream curated playlists from a compatible device, and they offer 4.5 hours of battery life on a single charge to support long listening sessions.
No, I would not recommend this to a friend
Rated 5 out of 5 stars
Sony headphones
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Posted . Owned for 1.5 years when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Life saver during my working time , very simple, connects fast to my phone , i can hear well the caller including very nice music quolity
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
MY FAVORITE BLUETOOTH
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I LOVE this Bluetooth! I have purchased approximately 20 Bluetooths and this device by far has the best battery life. I also prefer a weighted neck like this one because it prevents the device from sliding around. The material on this device makes it super easy to disinfect regularly.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 3 out of 5 stars
Great battery duration
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The audio quality is the best I ever got in any device, nice design. And overall, quality materials; and great battery duration.
The downside is the microphone performance: y need to hold this part close to my mouth for the person at the other side of the call to be able to hear me.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Great headset
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought this Sony Bluetooth headset in sale. Very satisfied with the quality
I would recommend this to a friend
Pros mentioned:
Sound quality
Rated 5 out of 5 stars
Clear audio
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this on sale during Christmas for 40 and it's been amazing. The audio is very clear even on phone calls. I use for calls a lot and hear very well even on busy loud areas like stores.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Rated 3 out of 5 stars
Headset
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
These headsets are decent while they are still functioning. One of the ear buds stops working after a few months. Make sure to buy the insurance.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Rated 3 out of 5 stars
Sometimes it its cool
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The only issue is that it sounds like I'm talking underwater to the other caller
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Pros mentioned:
Easy to use
Rated 5 out of 5 stars
Sound Proof!
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
headsets are great, soundproof and easy to use! I recommend these.
I would recommend this to a friend
Rated 3 out of 5 stars
It serves it’s purpose
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
I use them to workout just about everyday so they work for me.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Rated 4 out of 5 stars
I like the product
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The product is good. Very easy to operate. It doesn't fall off.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black
I would recommend this to a friend
Rated 3 out of 5 stars
Great but...
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Posted . Owned for 2 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Loved them but then the ear bud broke after a month or so and now hangs by a wire. Not sure how it happened though hence the mixed review.
I would recommend this to a friend
Rated 5 out of 5 stars
Headphones
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Posted . Owned for 6 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Are use these headphones while I’m on my motorcycle and they work great
I would recommend this to a friend
Rated 3 out of 5 stars
Good Sound & Volume
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Charging light is Red & turns off when full; weird... no blue/green?. Also, Headset SUCKS because NO next/previous buttons on the headset. Waste of my money.
This review is from Sony - C400 Wireless Behind-the-Neck In Ear Headphones - Black