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alaTest has collected and analyzed 1750 reviews from magazines and websites. Reviewers really like the usability and bass quality. The comfort and value for money are also appreciated. Some have doubts about the reliability, while there are some mixed opinions about the build quality.

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


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the Sony MDR-EX51LP is awarded an overall alaScore™ of 70/100 = Good quality.

Review analysis

(Based on 1750 reviews)

User Reviews  

Showing 38 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 38 Show Reviews: in English | in other languages (21)

Consumer review by:

Amazon review summary for Sony MDR-EX51LP


alaTest has collected and analyzed 1621 user reviews of Sony MDR-EX51LP from The average user rating for this product is 3.7/5, compared to an average user rating of 3.9/5 for other Headphones on

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


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

This summary is based on the products: Sony MDR-EX51LP Fontopia HeadphonesSony MDR-EX51LP Fontopia In-The-Ear Headphones, WhiteSony MDR-EX51LP Fontopia In-The-Ear Headphones, White (Discontinued by Manufacturer)

Consumer review by:

good ”


sound is amazing with great look and confort

Consumer review by:

Forget Bose, Buy These!!!


These are the best headphones I have ever had of all time. I have had just about every kind of headphone out there, and there is no way to beat these and spend as much or less.

Immense bass, comfortable fit, long cord, very durable

Absolutely none


Consumer review by:

Very nice, great sound quality


Theese head phones are the best i've ever used! They are very durable (i accedetally ran them through the washer and the dryer and they still work!)I lost the ear pices sometimes.

Comfortable, Durable, Highly Compatible, Lightweight, Rich Sound

Flimsy Construction

Consumer review by:

Great bang for the buck!


These replaced the ones that came with my MP3 player. I love how strong the bass is and how good they sound when compared to more expensive headphones. I have some much more expensive regular headphones and these sound comparable, and have better...

Accurate sound reproduction, BASS!!! Fit snugly in my ears and don't pop out

Expensive replacement rubber ear bud covers if you lose them

Consumer review by:

good! ”


i like them good sound

Consumer review by:

Keep loosing ear pieces. [$]to replace


The only thing I don't like is the fact that the ear pieces keep falling off and they cost a lot to replace.

Comfortable, Highly Compatible, Lightweight, Rich Sound

Flimsy Construction

Consumer review by:

Great headphones


I use these at the gym everyday. They are the most comfortable earphones I have ever used. The little rubber ear pieces do tend to fall off and if you lose one you have to buy a whole new headset. Great sound though.

Comfortable, Highly Compatible, Lightweight, Rich Sound

Consumer review by:

Superb Quality and Durability


I have been using these ear buds for the past two or three years. I remember first buying them and being shakey with putting them into my ears and getting used to them, and now, I don't know where I would be without them. They are definately worth the...

Comfortable, Durable, Highly Compatible, Lightweight, Rich Sound

Consumer review by:

Sony MDR-EX51LP - (Headphones)


Product Specifications

Sony's first closed-type Fontopia design reduces outside noise for high-intensity listening, helping to generate powerful, resonant bass response. So exercise, dance, or skate with the new MDR-EX51LP Fontopia headphones. Featuring a super-light in-the-ear design for a snug, comfortable fit inside the ear - eliminating the headband, super-small 9 mm drivers, and soft, silicon earbuds, these headphones were created to enhance your on-the-go listening. Two sizes of earbuds are also included. So move to your music with the MDR-EX51LP.

Audio Input

Type: None

Audio Output

Connectivity Technology:Wired
Headphones Form Factor:Ear-bud/In-ear ear-bud
Headphones Type:Binaural
Product Type:Headphones
Response Bandwidth:6 - 23000Hz
Sound Output Mode:Stereo

Audio System

Recommended Use:Portable audio system

Dimensions & Weight



Packaged Quantity:1
Product Line:Sony Fontopia/Sony MDR

Remote Control

Type: None