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Sony - Earbud Headphones - Blue

Enjoy crisp, powerful low-end audio with these Sony MDRXB50AP/L earbud headphones, which feature a bass duct design that provides optimal sound isolation. An integrated elecret condenser/omnidirectional microphone lets you chat hands-free.

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    What's Included

    • Cord adjuster, carry pouch
    • Earbud Headphones
    • Earbuds (2 x-small, 2 small, 2 medium, 2 large)
    • Owner's manual

    Ratings & Reviews

    Overall Customer Rating:
    95% of customers would recommend this product to a friend (3771 out of 4010)


    Earbud design

    With hybrid silicone earbuds in extra small, small, medium and large sizes ensures a custom fit for lasting comfort.

    12mm dome-type drivers

    Along with high-energy neodymium magnets create rich, powerful bass tones.

    Bass duct design

    Offers a high level of sound isolation for immersive audio with extended bass response.

    100 mW (IEC) power handling

    Stands up to extreme output levels.

    Integrated elecret condenser/omnidirectional microphone

    Allows clear hands-free communication.

    Multifunction control button

    Lets you manage functions on your compatible cell phone. A Smart Key app (download required) allows you to control your compatible Android phone.

    3.9' flat cord

    Resists tangles to permit neat storage.

    Gold-plated, 4-conductor, L-shape stereo mini plug

    Enables you to connect a wide range of devices.

    4Hz - 24kHz frequency response

    Delivers faithful sound reproduction.

    110dB/mW sensitivity

    Ensures robust audio.

    16 ohms impedance at 1kHz

    To efficiently conduct power through the headset.

    Customer rating

    Rating 4.5 out of 5 stars with 4010 reviews

    would recommend to a friend



    • Rating: 5 out of 5 stars

      Great earbuds


      I have been researching earbuds for about 3 weeks now. Ugh! No more! I just retired and want a pair for yard work around the house and for taking walks. What I found with earbuds is that no one wants to tell you Specs. They want me to buy them because they are popular, or the cool pair to have, or have features that I do not care about. But how do they sound? You can usually get a sense of how they will perform by the Specs. So why don't these companies provide basic performance numbers? Do they have something to hide? The numbers should be right on the box or the first thing they mention on a web site. In my experience over the last 40 years or so I have found Sony to be a quality reliable product at a price point that I can afford. And the the Specs on these earbuds are outstanding! First they have 12mm drivers! Huge! After digging deep I was able to find the Specs on several earbuds (why did I have to work so hard to get the Specs!) and most, even the expensive ones, have drivers between 6 to 9mm. The sensitivity rating is a huge 110dB which is extremely high and unique. The frequency response is 4Hz - 24,000Hz. Just massive! Most headphones much less earbuds of any quality at all will be 10Hz - 22,000Hz at best. And what do all these numbers at up to? A bass heavy sound with crisp clear highs and a solid mid-range. What I found from professional reviewers is they like to give earbuds that are bass heavy a hard time. They like to talk about how a good earbud should have good even bass but not over done. If I want that I will buy some reference monitors. I don't think the bass on these earbuds are over done at all all. I am a musician and an avid lifelong fan of music. But I'm not a snob about it. I have built basic home studios and recorded my own stuff and that is the place to have reference monitors with a flat response so that I am able to hear exactly what I am recording. In that environment I don't want a "colored" sound that isn't a true representation of the track I recorded. But when I go to mix down the recording I just made I am going to lean on the bass. The E.Q. with have the typical smile shape when I'm done. It's been my experience that people like to hear it that way. It sounds richer, fuller. But how many earbuds can you test, not as many as the professional reviewers. So on their advice I went out and got the Jaybird X2s. $140. I never got to hear them! Trying to get them to fit was so onerous I gave up! I mean come on, you should not have to try that hard just to get a good fit! I took them back. Then I purchased some Bose earbuds. $100. They were easier to fit than the Jaybirds but I was not impressed with the sound. So back to the store they went. Then I saw these on sale at Best Buy this morning for $29 and thought 3 things. They were only $30 so why not give them a try. The Specs on them were just outstanding so that was a good sign. And they were made by Sony which I have come to know and trust through the years. Well they did not disappoint.. They fit well right out of the box, And the sound was awesome. Big full bass without compromising the other frequencies. They look good. They fit well. They sound good. What else can I ask for? Ok they are not wireless like I was hoping for but that's ok.(Around the house I will use my Harman-Kardon blue tooth speaker that I love!) The Bose had a great storage case but at what cost? After several weeks and much research I have found my earbuds. I was willing to spend up to $150 but only had to spend $30. Don't hesitate to get them. I think you will be glad you did.

      I would recommend this to a friend

    • Rating: 5 out of 5 stars

      Great earbuds, Do Buy!

      • Verified PurchaserVerified Purchase
      • My Best Buy® Elite MemberElite Member

      These earbuds sound very good and they definitely deliver the low range sounds after you get them setup correctly. "Setting them up correctly" is finding which of the rubbers you need on each bud in each ear so that you achieve the best seal on both... this is how you get the best sound from earbuds. The weight and comfort is fine, they're not the lightest of all earbuds I've tried but they don't cause any issues due to their weight. The cord is pretty much tangle free in my use of them, it has a texture that reminds me of some of the old vacuum cleaners, haha... that is to say, it has ribbed lines running parallel (or vertically) along the length of the cord. There's an inline remote with mic that works on my iPhone and iPad with no issues. The 3.5mm audio connector is L-shaped and slim in profile so it works with all of my iPhone cases including my sometimes difficult to use with headphones Lifeproof Fre case. I won't reach into my vocabulary of various audiophile terms to ramble on about the sound of these buds, what I will say however is they sound great. I have my beloved Klipsch S4 earbuds and these sound slightly more fun and exciting than those, the high end is not as accurate as my Klipsch's but they low end is way better in my opinion. The midrange is nice here, and given that's where a good majority of the music most of us enjoy takes place I would say these reproduce that range well... maybe slightly slightly recessed mids due to a boosted low end but nothing I'm going to really knock them for overall. Let me just sum it up here by saying... you could spend a lot more and end up with something that doesn't compete with these in all areas. These are a yes if you ask me, do not regret, do buy!

      I would recommend this to a friend

    • Rating: 5 out of 5 stars

      Best bang for your buck.

      • Verified PurchaserVerified Purchase
      • My Best Buy® MemberMember

      I recently purchased these earbuds by Sony and I absolutely love the sound quality they provide. I was considering several different pair. I also looked at, and eventually purchased, the Klipsch R6. I also considered the Skull Candy strum. I listened to both the Sony and the Klipsch offering, using the same music from the same device so that I would have a accurate comparison. Both pair offer excellent rich sound for such a tiny speaker. Both have great bass and mid level sound. There are 4 differences between the two offerings in my opinion. 1. The Klipsch are more comfortable. They fit my ears perfectly. They are almost like having nothing in my ear at all. Great snug fit. I workout in my earbuds so that's important. The Sony pair seem more durable though. And they are not uncomfortable. They just aren't as comfortable by comparison. 2. Both pair have great bass and lows. The Sony offering had better high level sound though. The vocals are crisp and the horns are clear and bright. The Sony buds are extremely well balanced in my opinion. 3. The Sony buds have better styling and color. (If that matters to you.) 4. The Klipsch offering costs about twice as much. Winner: Sony I'm not paying Twice as much unless your product is twice as good. For the price, I haven't owned a better pair of earbuds. I'm not a fan of the bass heavy Beats. I listen to almost all types of music so I while I do love great bass from a speaker, I don't want to sacrifice clarity and balance. Sony offers it all for a great price.

      I would recommend this to a friend

    • Rating: 5 out of 5 stars

      I have several different pairs, brands and style


      But these black Sony are the ones I'm always reaching for. bypassing the Bose, Beats, JBL, Skull Candy XT-free, I will spend time looking for these. for good reason. I have a iPhone 6 and EQ on R&B or ROCK, with the "sound check off" specifically because these will cancel out ANY outside noise, you have to be careful at times. I didn't hear a fire engine pass right by me. The BASS will be felt not just heard, (4Hz-24Hz) the HIGHS can pierce your ear drums. These can be EXTREMELY loud if EQ isn't correctly set for the need. I have to make sure all the settings are right, before inserting them and turning them up. These are awesome if you wanna be in your own music world and ignore the mayhem around you! Ive heard parts of songs i'd never heard before, it took me a while to find the right ear mold size. It comes with 3 or 4, you need one that securely holds the earbuds in place. Not too deep, not too loose.These should cost $200-$250.00! I don't know how SONY can afford to do it. Get them, you can return them if Im lying.

      I would recommend this to a friend

    • Rating: 5 out of 5 stars

      Great sounding earbuds

      • Verified PurchaserVerified Purchase
      • My Best Buy® MemberMember

      These Xtra bass in ear earbuds sound really good. Cost vs when on sale for under $40 if possible. Pros. Great sound reproduction. Crisp highs and excellent bass. Not overwhelmed with bass. An EQ on your listening device will help tremendously to get sound setup to your liking. Has an answer button for incoming and ending calls. This single button also skips to next sound track. Pretty comfortable when in ear for long periods of time. They don't hurt at all after hours of use. Cons... There is no volume control on earbuds anywhere...just the single, multi function button for answering/ending calls and skipping songs. The in ear earbuds are not universal fit....meaning one is labeled left and one is labeled right. They will hurt your ears and eventually pop out if in the incorrect ear. The cable picks up any type of rubbing or movement on say a jacket collar and will emit a loud almost static noise when cable brushes up against something. After about 4 months of use the built in mic, on same area as the mulifunction button, has stopped working so I can't use to talk on my cell phone. So when I am listening to Pandora on my cell phone with these earbuds and I get a phone call I have to remove an earbud, unplug cord from phone and finally answer the call. Sucks really. But these have lasted quite sometime. We all know in ear earbuds always break. That's why $100 earbuds make no sense. I WILL BUY THESE AGAIN as soon as I can no longer listen to music and they finally give out fully. Normally, with other brands of earbuds I've tried, one side quits working or I get an annoying static sound through speakers as one side cuts out. Not with these. These Sony earbuds are quite durable actually. I recommend to buy 100%.

      I would recommend this to a friend

    • Rating: 5 out of 5 stars

      Great sounding bass headphones

      • My Best Buy® MemberMember

      I'm usually very picky about my headphones and was steering away from these and going for an expensive, high end product. But I took a chance on them on a whim because I was in a hurry to go get a run in, and I'm very happy I did. The Sony's are great. I'm a bigger guy so I had to change from the default ear plugs to the largest one they offered, but once I did, it was fantastic! Great seal to block out ambient noise and an incredibly strong sound with lots of bass. And despite the heavy bass, it never got "muddy" or lost the rest of the range. Again, I love bass...and I listen to lots of old school Rock and R&B. When I got home, I compared them to my wife's earPods for pure sound and the Sony's were much better to me which was a real surprise because I had always liked the sound of the earPods. But switching back and forth between the two, it was clear that the Sony was just a stronger all around sound for me. I did a lot of running and some hurdles and platform jumps and they never came out so I was very pleased with that aspect as well. As I said, I had to switch to the larger tips but once I did that, it was great, full sound and never moved during my exercise. I've been using them for about 5 different workouts now and still perfect for me.

      I would recommend this to a friend

    • Rating: 5 out of 5 stars

      Great product

      • Verified PurchaserVerified Purchase
      • My Best Buy® MemberMember

      I bought these pair of headphones to use for listening to music on my laptop and use during gaming. I moved up from a pair of Samsung earbuds that came with my Galaxy S3 so I really don't have any room to compare to top of the line Bose or Sennheiser. To give a general summary of what I think of these headphones: These have average sound quality with great bass. They are not noise isolating and can get a little uncomfortable after long periods of time since the ear piece is oddly shaped. I will break down my review into different categories. Sound Quality: The earbuds are great if you're the average listener. You can hear the different instruments and background melodies just fine. I play Counter-Strike: Global Offensive and use these when I play. Hearing footsteps and gunfire is important in the game and I hear about everything when I play. I can distinguish things that are coming from the left earbud to the right perfectly. The only con is that they were not as clear as my Samsung earbuds. The sound was a bit muffled and expected a more clear sound from a $50 earbud. I've only had these for a week so maybe I need to burn them in more.. who knows.

      I would recommend this to a friend

      • Brand response


        Hello alva22!, Thank you for taking the time to let us know your experience with this eadbuds, we will forward this information for further review.~ JeannetteSonystyle

    • Rating: 4 out of 5 stars

      These sound pretty good for the price

      • Verified PurchaserVerified Purchase
      • My Best Buy® Elite MemberElite Member

      I was looking for some earbuds to use with a gaming laptop, and didn't want to invest a lot of money in them. (I'm pretty picky about sound quality in general, but I've found you can usually get away with a little bit cheaper of speakers or headphones if you're only listening to digitally generated music and speech in games. Having enough bass to reproduce explosions accurately is still important though.) Best Bay had these on sale for under $40, which was the price range I had in mind, and I trusted the Sony brand to be at least respectable in build and sound quality, so I gave them a try. I was pleasantly surprised to find they not only met my expectations, but actually seem to have pretty well balanced sound. (The "Extra Bass" branding on them concerned me because I didn't want to buy something that was bass heavy, making things sound "muddy".) It's actually more like I had hoped, where the extra bass promise just means the bass is heard (unlike the budget earbuds in the "under $15" category that usually have almost no bass). The only downside I've found to these is that I wish they made the cord a little bit longer. For example, if I sit my laptop on the floor right next to a chair I'm sitting in? The earbud cables just barely reach. If I turn my head, that's enough to pull the cord tight and make one of the earbuds come out of my ear.

      I would recommend this to a friend

    What experts are saying

    Click to visit alaTest website
    • 11, 2017
      Sony MDR-XB50AP review
      Sony's MDR-XB50AP in-ear headphones are claimed to give club-like sound thanks to their X-Bass feature. But will other commuters be able to hear the beat as you head off to work? We sent these Sony headphones to our test lab to find out whetherFull Review

    Product images, including color, may differ from actual product appearance.