I got this about 3 years ago and its still kicking hard bass. I am having some audio issues with the left eabud going in and out, I guess the wiring is finally going out after over 3 years of daily use.

Bought these and returned them same day. As soon as connected to phone you get a hum/buzzing noise in the background. Can't hear it as bad at high volume. Always used Sony with no problem but upon reading other reviews on this model they all have the problem. Bass does sound good though.

What an amazing headphone (earphone)! Perfect for listening to death metal. Enhances the bass as it says it does. I use Spotify and adjusting the equalisers a bit down from bass towards treble and the other one towards instrument gives an awesome effect. Turn on Dolby Atmos. Definite thumbs up.

I like these just a little better than my Sony MDR XB90ex, which I think is saying a lot. They both have a very ergonomic design that allows them to stay in ear securely and comfortably for long periods of time.

Comfortable; cheap; slammin' bass; ergonomic design

Not as sparkly up high; but true to Sony house sound

Pure Sony excellence as you'd expect! Cannot fault them for the money, and very unobtrusive too. Comfort, style, and clarity in a box

Came from Bose and these Sony sounds better than Bose + 9 hrs battery life. Well done Sony.

The issue isn't the product. It is with Target's lack of 'full disclosure'. I specifically searched for a set of wireless earbuds that did not have a bass-boosting element. This one didn't have bass boost listed anywhere, not in the description, the details, on the picture of the product.

Had these for about a month - replaced a set of completely wireless bluetooth in-ear 'phones whose sound quality was OK but sound kept dropping out. These Sony wired 'phones have noticeably better sound, better bass and the sound doesn't break up at all.

When they say extra bass, they really mean it. I bought these to listen to Drum n Bass, rap, edm, etc. and they're great for those genres. However, any Rock/Jazz/Pop/classical sounds like trash on these. The mids are overly subdued and the highs are sharp but there's no volume to them.

My old Skull Candies went out on me and I replaced them with these heaven sent gems. The bass is astronomical and I like the button set up. They are very easy to pair with your device and they come with different sized ear buds if you should want to swap out.