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alaTest has collected and analyzed 113 reviews from magazines and websites. Reviewers really like the comfort and design. The value for money and sound are also mentioned favorably. Views about the mids quality and size are mixed, while many are less positive about the reliability.

bass quality, sound, value for money, design, comfort


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the Sony MDR-XB21EXZ is awarded an overall alaScore™ of 78/100 = Good quality.

Review analysis

(Based on 113 reviews)

Expert Reviews  

User Reviews  

Showing 21 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 21 Show Reviews: in English | in other languages (6)

Consumer review by:

Amazon review summary for Sony MDR-XB21EXZ


alaTest has collected and analyzed 45 user reviews of Sony MDR-XB21EXZ from The average user rating for this product is 4.2/5, compared to an average user rating of 3.9/5 for other Headphones on

bass quality, value for money, sound, comfort, design


87% of the reviews on give this product a positive rating.

This summary is based on the product: Sony MDR-XB21EX Extra Bass Headphones

Consumer review by:

These are the best! Thank you so much!


Best use for me is noise canceling so that I can work on projects, artwork, etc. do not recommend for working out because of the long cord, but all other uses are great. My favorite feature is the noise canceling\/isolation, because I\'m easily...

Bass Booming","Beat Dropping","Comfortable","Compact","Durable","Ear Splitting","Good Bass","Good Value","Great Sound","Lightweight","Stylish","Top Of The Line

Consumer review by:



Great for the money



Consumer review by:

You\'ll have to buy to believe the sound


I recommend anyone who\'s looking for a great little ear bud that will rock your socks off. I\'ve owed a lot of other products that just to match up to what your going to get. If you don\'t believe me buy them for yourself and see.

Comfortable","Compact","Durable","Good Bass","Good Value","Great Sound","Lightweight

Consumer review by:

Xtra Bass in your ear


I love this earphones, I have a Sony XB500 and I say these ones are better than the headphones. The sounds doesn't leak as the XB500 and over all sounds better inside your ear.

Nice bass, tangle free flat cord, stylish

Slightly heavy after few hours of use

Consumer review by:

Pure Greatness


These are far the best headphones I have ever used! The sound is perfect and the headphone even silenced a car radio. So I can listen to what I want to listen to on a day trip. I have small ears and surprisingly they fit so well! But my cat got a hold...

The fit is perfect and it takes out any annoying sound around you


Consumer review by:



These little buds are great, I didn't know if it was such a good idea because of the other reviews. Clearly they don't know what they are talking about because mine are great they are just as good as dr.dre turbines but on thing that would be nice on...

Great Bass

Small Drivers

Consumer review by:

Died after a day


after using them for about 3 hrs total the first day i got these head phones the right earbud stopped producing sound.

great bass, good looking design

died after a day

Consumer review by:



I bought these headphones in the Sony Store in Brazil. After a period of 9 days of careful use the right ear bud stopped working. I contacted SONY Brazil. . The worst durability from the headphones. I've never seen anything like it. Caution. Now at...

Good song/bass and the flat cable is wonderful

great while they lasted (9 days)

Consumer review by:



I love the quality of the sound, and the incredible bass. Everything about it is amazing, it feels insanely comfortable in my ear, it never hurts, the different buds make for extremely well fits. The only problems I have with these is the cord leading...

Product Specifications


Active Noise Cancellation: No
Dolby PL / AC3: No
Earclip: No
Neckband: No
Noise Cancellation: No

General Features

Ear Canal Headphone: Yes
Signal Connection:Wired
Type:In Ear Headphones