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Sony MDR-AS20J

alaTest has collected and analyzed 1671 reviews from magazines and websites. Reviewers really like the portability and usability. The value for money and comfort also get good feedback, but many are negative about the reliability.

sound, comfort, value for money, usability, portability


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the Sony MDR-AS20J is awarded an overall alaScore™ of 81/100 = Very good quality.

Review analysis

(Based on 1671 reviews)

Expert Reviews  

User Reviews  

Showing 225 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 225 Show Reviews: in English | in other languages (25)

Expert review by:

Sony MDR-AS20J Headphones


Maxell’s Encore EN-5 offer a rich, full sound for an affordable price, beating out nearly all of the headphones in the test. However, our testers didn’t think they were very comfortable, nor did this pair do a good job staying put during use....

Consumer review by:

Sony MDR-AS20J Active Headphones


Awsome headphones.

Wowowow good and awsome they are my fav. They sound awsome and play awsome some music sound muffled if it is not a song it sound muffled if it is a prank phone call. Bottom line they are awsome man

Some songs that are like prank calls are muffled

Consumer review by:

Sony MDR-AS20J Active Headphones


they look weird but they grip your ear and stay there

nothing bad to say


Consumer review by:

Sony MDR-AS20J Active Headphones


Good value for the money, I only wish they would have lasted longer. The sound quality is passable, but the fit is excellent! These are a good choice for the user that wants a better fit for the gym, but isn't overly concerned with high quality sound.

Excellent value for the money. Some say they had trouble getting a secure fit, but I found the fit to be perfect despite usually having a hard time in that department. Convenient clip keeps the cord out of the way

Sound quality is average at best, but my main complaint is the lifespan. I usually get a good year out of my buds, but these quit working well after only about four months

Consumer review by:

Sony MDR-AS20J Active Headphones


They are cheap, so you get what you pay for, but I would avoid these if you are going to use them for any sort of "active" use.

The sound quality is decent

Poorly made jack looses inside contact with my ipod (and speakers and phone) causing music to cut out constantly. The fit is not great on ears either, stated for active wear, but they barely stay on when running

Consumer review by:

Amazon review summary for Sony MDR-AS20J


alaTest has collected and analyzed 1186 user reviews of Sony MDR-AS20J from The average user rating for this product is 3.8/5, compared to an average user rating of 3.9/5 for other Headphones on

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

77% of the reviews on give this product a positive rating.

This summary is based on the products: Sony MDR-AS20J Active Style Headphones with Soft Loop Hangers - BlackSony Mdr-As20J Active Style Headphones with Soft Loop Hangers (Black)Sony Mdras20j Sport Clip-On Headphones (Headphones )

Consumer review by:

This product, seems, to fulfil my needs


Too new to evaluate the \'long term lasting ability, but seem to fill the bill, Good for \'older folke\' with Hair in their Ears, that cannot use \'in the Ear\' Phones

Comfortable","Compact","Great Sound

Consumer review by:

Good sounding headphones


Headphones have good bass and range. Stay put when I'm running. Cord is long enough. No volume control, so 4 stars for features.

Consumer review by:

Great headset for the gym


While these don\'t produce the same sound as my pair of Bose on Ear headphones, they are perfect for the gym. they fit nicely and produce great sound while on the treadmill. they do not move around and I do not need to readjust them constantly compared...

Comfortable","Good Bass","Great Sound

Consumer review by:

Not Bad


I bought these about a year ago and love them. They were great for the price and stay on well. But over time one earbud got to have a lower volume. I think i'll shell out the money for a more expensive pair this time.

Great sound for the price, inexpensive, stay even when sweaty

Stopped working

Product Specifications

The vertical, in-the-ear active style MDR-AS20J headphones makes it easy to add a heart-pumping soundtrack to whatever you may be doing. The soft loop hangers fit comfortably over your ear and allow you to play hard without fear of unexpected earbud drop-out. There's also a handy cord clip for unfettered activity.

Audio Output

Connectivity Technology:Wired
Headphones Form Factor:Over-the-ear
Headphones Type:Binaural
Product Type:Headphones
Response Bandwidth:18 - 22000Hz
Sound Output Mode:Stereo

Audio System

Recommended Use:Portable audio system

Dimensions & Weight



Packaged Quantity:1
Product Line:Sony MDR