Sony MDR-AS20J Active Style Headphones with Soft Loop Hangers - Black

by Sony

Product Details

• Product Dimensions: 8.2 x 4.2 x 1.5 inches ; 0.5 ounces
• Shipping Weight: 1 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B0015AHRFK
• Item model number: MDR-AS20J
• Average Customer Review: 3.7 out of 5 stars  See all reviews (504 customer reviews)
• Amazon Best Sellers Rank:
  • #27 in Electronics > Accessories & Supplies > Audio & Video Accessories > Headphones
  • #81 in Electronics > Portable Audio & Video > MP3 Players & Accessories > MP3 Player Accessories

Product Description

Amazon.com Product Description

Sony's MDR-AS20J Active Style Headphones give you the freedom to enjoy your music and workout without any interference from bothersome cords. These headphones are great for athletes, personal trainers, fitness enthusiasts and those who are continuously involved in physical activity or on-the-go. Enjoy features such as a sweat resistant guard design, rich sound quality, and a cord clip to secure the cord during movement.

Sweat Resistant

Sony's MDR-AS20J Headphones have a sweat-resistant moisture guard design that allows moisture to pass around the headphones so you won't have to worry about sweat damaging your headphones while working out.

Secure Fit

Perfect for the active lifestyle, fast movements, and high-impact workouts, the MDR-AS20J headphones are versatile and have a slip-resistant, comfortable fit for all ear sizes. A cord clip is included to secure the cord and prevent interruptions during your activities.

Sound Quality

Sound should not be sacrificed during high-impact workouts and activities. The 13.5mm driver units and neodymium magnets deliver rich sound quality found in these headphones will keep you moving with sharp tones and deep, vivid bass.

Clip-on design allows for a comfortable over-the-ear fit

Clip-On Design

Perfect for the active lifestyle, fast movements and high-impact workouts, these versatile headphones have a slip-resistant, comfortable fit for all ear sizes. The clip-on design has soft loop hangers that fit comfortably over the ear for a wide range of ear sizes. A clip is included to secure the cord and prevent interruptions during movement.

MDR-AS20J Specs

Driver Unit:	13.5mm diameter, dome type
Magnet Type:	Neodymium
Frequency Response:	18Hz - 22,000Hz
Impedance:	16 ohms
Sensitivity (db):	104dB/mW
Power Handling Capacity:	50mW
Cord Length:	2ft

What's in the Box

• MDR-AS20J Headphones
  
• Extension Cord
  
• Clip
• Warranty Card
  

Product Description

Newly developed loop hangers prevents dropping off the ear and fit a wide range of ear sizes. Soft loop hangers for comfortable fitting. Lightweight clip-on style (vertical in the ear).

Customer Reviews

Most Helpful Customer Reviews

295 of 299 people found the following review helpful:

5.0 out of 5 stars Perfect!, June 29, 2008

By 

Jeffery A. Lewis (Milford, CT United States) - See all my reviews
(REAL NAME)   

This review is from: Sony MDR-AS20J Active Style Headphones with Soft Loop Hangers - Black (Electronics)

I have been in search of a pair of headphones for running for about a year. I have tried primarily earbud style designs. I have not tried in-ear designs because I do not like the sound isolation provided by in-ear. I feel this is a safety issue for running. The earbuds I have tried simply lack bass. Even though the specs of the earbuds I have tried show a frequency response down to 20 Hz, there seems to be a bass roll off.

The MDR-AS20J have very good bass. They have 13.5 mm dome type drivers as opposed to typical 9 mm drivers of earbuds. What also helps with the bass is the clip design. The clip design pushes the bud firmly but gently in the ear which helps with the bass response. Other earbuds slide out slightly which has a dramatic effect on bass.

The MDR-AS20J stay in place while running. You literally can just forget about them. They will not budge. The cord is also very light which helps with the bouncing of running. The MDR-AS20J are very comfortable for me though they are not adjustable. Some users may have fit issues.

These headphones have a very low impedance (16 ohms). That means just about any device can drive them to very high volumes, and at normal listining volumes, they will take less power.

These headphonse are weather and sweat resistant. Another important consideration for running.

These headphonse sound great. They have a balanced sound that does not over or under emphasize any frequency range. I used to watch movies in bed with a pair of high quality home headphones. The MDR-AS20J can hold ground even with my flagship headphones. I now use the MDR-AS20J for home listing in bed simply because they sound really good and they are so comfortable. You can fall asleep with them on as opposed to large headphones that get in the way.

I would give these headphonse about 10 hours of break in before judging them. CNET gave an OK review of these headphones. I doubt they let them break in. When you first get them, there will be slight distortion in the midrange which results in a muddy sound. This will go away.

You cannot go wrong with these for under $20.

108 of 109 people found the following review helpful:

5.0 out of 5 stars Perfect, comfortable fit when earbuds fail, and great sound to boot!, June 27, 2008

By 

R. Reusch "frugal consumer" (Columbia, MO, USA) - See all my reviews
(REAL NAME)   

This review is from: Sony MDR-AS20J Active Style Headphones with Soft Loop Hangers - Black (Electronics)

I have been enjoying the Sony MDR-AS207J headphones since April and have not been happier with a pair of clip-on/in-ear headphones. Earbuds (like those included with most mp3 players) do not stay in my ears, even with the addition of optional size adjusters, especially at the gym, so after several years of purchasing earbuds of every brand and type I resorted to the less comfortable but terrible sounding MDR-J10's until this model came out. The soft rubber is flexible and comfortable, and because it goes completely around the back of the ear, the headphones stay in place. I where mine everyday, going to work or class, and run with them several times a week and they actually stay in place every time, something no other in-ear headphone has done for me. Some other advantages to clip-ons vs earbuds is that these clip-ons do not block out ambient noise, so you will be safe when out and about. They are comfortable, even after several hours, and I have even worn them to bed several times. Also these headphones sound really really good, especially for $20 headphones. My hearing is not great after years of working around power tools, but I was pleasantly surprised by the sound quality, especially after the dismal MDR-J10s. While the sound is not comparable to a pair of high-end, noise canceling headphones, I find it rather comparable to the Sennheiser PX100s, which are a mid-range headphone. So for everyday use when out and about you cannot go wrong with these. Save the audiophile listening sessions for something nicer. After 3 months of heavy use, these headphones show no wear or frays in the cord coating, and have held up to sweating in 90 degree weather and moderate rain. Speaking of the cord, I have found the length (which is pretty standard) to be perfect. I have enough cord to allow me to place my iPod in any pocket when walking around, and have not found it to be inconvenient when at the gym or running outside. The cord is too long for use with armbands unless you wrap it or use an armband with a cord holder (like the Tune Belt Open View Armband). After 20+ different pairs of earbuds and other in-ear headphones of the last 2 years, I have never been more pleased with 'active' headphones. They will fit your ears and stay in place in virtually any activity and the price is so low I actually purchased several pairs just in case they stop manufacturing them.

55 of 58 people found the following review helpful:

5.0 out of 5 stars Love these! Excellent for runners!, July 10, 2008

By 

Illinifan (Champaign, IL) - See all my reviews

This review is from: Sony MDR-AS20J Active Style Headphones with Soft Loop Hangers - Black (Electronics)

Like many other picky runners, I have been in search of the "perfect" headphones for quite some time now. The standard iPod ear buds fall out of my ears (as do most other ear buds) and it seems as though every other pair of headphones I tried required constant adjusting while running. That's not the case with these! I wore these during about an hour of cardio (a 30 minute run and 30 minutes on an elliptical trainer) and I never had to adjust them once. They didn't even have that feeling like they're about to fall off. These take some slight mangling to put on my ears, but once they're on, they're staying.

I'm no audiophile, but I feel that the sound quality is pretty decent. I've heard better and worse, but for a $20 pair of headphones, I think the sound is pretty darn respectable.

The only thing I can nit-pick with these is that the cord is too long, although it comes with a cord clip to resolve this issue. Overall though, I'd HIGHLY recommend these. I've tried numerous pairs of headphones and these are by far the best.