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Sennheiser Black CX150 Earbud Noise Attenuation Earbuds

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Learn more about the Sennheiser Electronic corp. CX150



General SPEC

Frequency Response
Ear Coupling
Cord Length
3.9ft. (1.2m)


Innovative Design For Enhanced Grip And Easy Fit

Comfortable Ear-Canal Phones With Bass-Driven Sound

Finger-Contoured Design Of Ear-Canal Phones Allows For Easy Adjustment And Optimal Wearing Comfort

Bass-Driven Stereo Sound With Good Attenuation Of Ambient Noise

Optimized for MP3, iPod, iPhone, CD players and portable gaming systems

Compatible (listen only) with latest generation of tablets

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the Sennheiser Electronic corp. CX150

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  • Scotty S.
  • 3/22/2014 5:26:13 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat earbuds

Pros: Lasted over a year (Originally purchased in 11/24/2012
Good sound isolation
At the price I got them for ($19.99), these are a great value.

Cons: You kind of are unable to use them if you lose the ear tip pieces.

Other Thoughts: Depending on your taste of sound, these have pretty good bass, which may or may not be for everyone's taste.

It does have a 90 degree connector on the end, which again, may or may not be for everyone.

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  • Cindy P.
  • 2/10/2014 8:06:50 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWOW

Pros: Great sounding, so much bass, yet so much balance. They are comfortable and actually stay in my ears. I can wear these for hours and forget they are there. Also, my ears are very waxy, so I love that they are so easy to clean.

Cons: None

Other Thoughts: I would wear one earpiece and twirl around the other one. The left one (the one that got twirled mostly) is much quieter now than the right one. So the lesson is "BE NICE TO THESE!"

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  • Scott M.
  • 1/27/2014 11:08:56 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsGreat while they lasted

Pros: Great sound quality and noise cancellation for ear buds. Excellent punchy bass Senns are known for.

Cons: One side died right around the 1 year mark. Second set of Senn ear buds I've had do this to me (different models). This set was worn exclusively at a stationary desk at my job. Previous set was also used while doing light work around the house.

Other Thoughts: After two sets both failing me around the year mark, I'll be looking to a different brand of ear bud in the future. Its unfortunate because I love the sound quality Senns produce.

I have also purchased full size headphones from Sennheiser that have given me zero issues and have lasted.

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  • Eric G.
  • 1/8/2014 3:26:54 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Earbuds!

Pros: I've owned all sorts of headphones over the years that i've paid between 20 and 200 bucks for. I've owned a fair amount of Sennheisers too. These are great headphones! Esp for the 15 bucks a piece i paid for them! Would i spend more on them? YES I've had a few Monsters and Beats by Dre, and i still use these as much as my Beats. The 2 pairs of Monsters i had both had one side go out, granted i'm rough with headphones. These though, sound great, and have been going strong since i got them. The difference between these and 10 dollar or even 20 dollar normal headsets is WELL WORTH and extra 20 for. Now to i believe anyone should be dropping 200 for earbuds? NO.. If someone laid out 5 sets of earbuds priced from 40 to 200 bucks, i'd be surprised if the greatest audiophile could distinguish them qualitywise by their price.

Cons: Doesn't have no style cables that prevent tangling, but they have lasted fine, even when i throw them in my Beats case in half a second, so they are durable.

Other Thoughts: Don't be buying 100 dollar ear buds, these will do just fine!

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  • Robert A.
  • 11/15/2013 7:27:49 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsVery good for the price

Pros: Work well, don't fall out of ears. I got them for 20 something when on discount and price to quality ratio is an all around win. good bass and very clear highs and mids.

Cons: not really a con, more of a wish. I use them with my phone and I would have really liked for it to be able to change/stop tracks with some kind of control buttons on the wire.

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  • Anonymous
  • 10/7/2013 2:15:03 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsNice little earbuds

Pros: Since I was first exposed to Sennheiser I've been impressed with their quality, and these earbuds are no different. For being as small as they are they have taken a fair amount of abuse from me and seem to be holding up well. That's saying something given that they are fairly inexpensive. The sound is not great (see cons) but it's passable, especially given that I mostly use them in a noisy environment.

Cons: I'll note upfront that I'm a bit of an audiophile so this may not be a con for everyone, but it is for me. The sound reproduction is decidedly inferior to my old CX485s (I really miss them). These fail to reproduce the same level of richness/fullness, especially in the bass. It was originally a little disappointing for me, but I'm fine with them in an environment that isn't exactly quiet, which is where I use them most anyway.

It's also worth noting that there can be some cord noise associated with these. It can be avoided if you're a little careful, but it should be noted that it's there.

Other Thoughts: I've had more than my fair share of disappointments when it comes to earbuds, and these have yet to disappoint. Even being an audiophile I've purchased 2 of these (because eventually I will manage to break these)

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  • William B.
  • 10/3/2013 2:40:52 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDon't rate these too quickly

Pros: Sounded very good, fit well

Cons: ... for 2 months, then one side stopped working.

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  • Andrew A.
  • 7/4/2013 3:38:12 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAmazing $20 earbuds

Pros: These fit in my ear so perfectly. I haven't found any other earbuds that fit this well, and keep external noise out as thoroughly as these. The sound is amazing. These sound almost as good as other $100 earbuds. Deep Bass, Sharp Treble, and Clean Mids.

You can easily determine withch is right and left by feel alone. They are also solid when working out or sweating. They keep their position very well.

The Cable is also the perfect length. I am 6'2" and i keep them on my phone in my back pocket, and i can turn my head easily with no stretching or issues.

Highly recommended!

Cons: No Pouch or Carrying Case, but that's not really a big deal.

Other Thoughts: Do yourself a favor, and spend the $20 on these.

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  • Lorraine K.
  • 7/3/2013 11:09:01 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsNot so good

Pros: Were nice while they worked...

Cons: One earphone went dead after 1 month use. Not too happy.

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  • Nikko E.
  • 6/17/2013 11:14:35 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent earbuds

Pros: -good mids and highs
-deep bass without sounding tinny
-noise isolating (not cancelling)
-good for running, no cord noise
-got on sale for only $16

Cons: -Wires feel thin, but have been durable

Other Thoughts: I use Sennheiser HD555s for home use, but for when running or commuting to college, these are wonderful for blocking out most of the noise in a bus or light rail.

It obviously won't sound as good as my HD555s, but for 1/10 of the price, it's not far off. Definitely would recommend!

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