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Sennheiser CX300 II CX 300 II Precision Enhanced Bass Earbuds, Black (Discontinued by Manufacturer)

4.2 4.2 out of 5 stars 12,932 ratings

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Purchase options and add-ons

Brand Sennheiser
Model Name CX 300 II
Color Black
Form Factor In Ear
Connectivity Technology Wired

About this item

  • Optimized for MP3, iPod, iPhone, CD players and portable gaming systems
  • Dynamic transducers deliver powerful, bass driven sound
  • 16 ohm impedance is ideal for use with cell phones, tablets and portable music players
  • In ear canal design provides ambient noise isolation to improve listening experience
  • 1.2 meter asymmetrical cable with 3.5 millimeter right angled plug; The longer end goes behind the neck and into the opposite ear
  • Soft silicon ear tips (Small, Medium, and Large size included) to optimize fit for comfort and sound quality

Frequently bought together

$38.01
Get it Apr 8 - 18
In Stock
Ships from and sold by Onogo US.
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$7.99
Get it as soon as Tuesday, Apr 2
In Stock
Ships from and sold by Amazon.com.
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$21.70
Get it as soon as Tuesday, Apr 2
In Stock
Sold by ARF Tech and ships from Amazon Fulfillment.
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Sennheiser CX300 II CX 300 II Precision Enhanced Bass Earbuds, Black (Discontinued by Manufacturer)
Sennheiser CX300 II CX 300 II Precision Enhanced Bass Earbuds, Black (Discontinued by Manufacturer)
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Price-5% $38.01
Typical:$39.99
$139.99-5% $17.98
List:$19.00
-16% $99.95
List:$119.00
$34.99-10% $44.95
List:$49.95
Delivery
Get it Apr 8 - 18
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Sound quality
4.1
4.1
4.3
4.2
4.3
3.8
Noise cancellation
3.6
3.9
3.8
3.9
4.0
3.6
Comfort
3.9
4.4
4.1
3.9
Quality of material
3.6
4.0
4.1
For working out
3.1
4.0
3.6
Sold By
Onogo US
FiiODirect
Amazon.com
AVLGEAR
Symphonized
First Genuine
connectivity tech
Wired
Wired
Wired
Wired
Wired
Wired
headphones form factor
In Ear
In Ear
In Ear
In Ear
In Ear
In Ear
connector type
3.5mm Jack
2.5mm Jack
3.5mm Jack
3.5mm Jack
3.5mm Jack
noise control
sound isolation
sound isolation
sound isolation
sound isolation
headphones jack
3.5 mm Jack
3.5 mm Jack
3.5 mm Jack
3.5 mm Jack
3.5 mm Jack
cable feature
Retractable
Detachable
Retractable
Detachable
Tangle Free
Retractable

What's in the box

  • Cx 300-Ii Ear-Canal Phones
  • Ear Adapter Set (S/M/L)
  • Carrying Pouch
  • CX 300-II ear-canal phones^Ear adapter set (S/M/L)^Carrying pouch
  • Looking for specific info?

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here. [PDF ]

    Feedback

    Sennheiser

    Sennheiser CX300 II CX 300 II Precision Enhanced Bass Earbuds, Black (Discontinued by Manufacturer)


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    Product Description

    Product Description

    Offering a powerful, bass driven stereo sound with greater clarity and improved dynamics over standard earbuds are the Sennheiser CX 300 II in ear headphones. The various sizes of ear adapters (S/M/L sizes) provided in the package allow for a customized fit as well as exceptional noise blocking capability. A convenient carrying pouch is also included for easy storage.

    From the Manufacturer

    Sennheiser CX 300-II

    Offering a powerful, bass-driven stereo sound with greater clarity and improved dynamics over standard earbuds are the CX 300-II ear-canal phones. The various sizes of ear adapters (S/M/L sizes) provided in the package allow for a customized fit as well as exceptional noise blocking capability.

    • High passive noise attenuation
    • Modern, bass-driven stereo sound
    • Built-tough with a 2 YEAR warranty! Learn more about the CX 300-II

      The CX 300-II features an asymetrical cable which the longer end goes behind the neck and into the opposite ear. This mimics a single sided cable and reduces the amount of cable in front of the wearer during physical activity. This is a safety and ergonomic feature.

      Features
      • High-quality dynamic speaker systems for bass-driven stereo sound and durability
      • Personalized fit in the ear canals functions as an earplug and high-quality speaker
      • Customizable ear adapter system achieves the perfect fit
      • Convenient carrying pouch included
      • Asymmetrical cable reduces tangles and cable clutter
      • Built-tough with a 2 Year warranty Did you know?

        The CX 300-II is available in black or silver.

        Sennheiser recommends this headset for...

        ... those looking to upgrade from standard ear-buds, and those that crave great sound in a compact, portable package.

        Compatibility

        The CX 300-II is Compatible (listen only) with latest generation of tablets and 1/8" jack smartphones and portable music players.

        Warranty

        The CX 300-II is covered by a 2-year global warranty. Sennheisr's worldwide network can quickly and reliably handle any warranty issues.

        Technical Data Frequency response 19-21,000 Hz Impedance 16 ohms Sound pressure level (SPL) 113 dB (1kHz/1Vrms) Transducer principle Dynamic Cable length 3.9 ft. (1.2 m) Jack plug 1/8 (3.5 mm) Warranty 2 Years Why Sennheiser ?

        For over 60 years every Sennheiser mic or headphone comes with a built-in mission: to stay true to the sound and soul the music was given by its artist. From the fragile intimacy of a whispered word to the deep and dark punch of an attacking bassline. Sennheiser delivers pure emotion and excitement. A quality that has convinced a broad spectrum of artists and of course music lovers all over the world. Sennheiser offers a great experience for everyone who really wants to hear.

        What's in the box?
        • CX 300-II ear-canal phones
        • Ear adapter set (S/M/L)
        • Carrying pouch

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    12,932 global ratings

    Customers say

    Customers like the sound quality, quality and value of the headphones. For example, they mention the high notes are noticeable, the bass licks are clean and the build quality seems pretty sturdy. That said, they say it's a solid pair of in-ears and a good value for the money. Customers are also happy with size. That being said, opinions are mixed on performance, and appearance.

    AI-generated from the text of customer reviews

    3,019 customers mention2,257 positive762 negative

    Customers like the sound quality of the headphones. For example, they say it has a natural clear sound, the high notes are noticeable, and the bass licks are clean. The tonal balance is very natural and open, and reverbs on the vocals come out really well. The noise isolating works out pretty good, and lows are not booming.

    "...well worth it given its boost to the sound and powering the active noise cancellation but I don't miss having that extra bit ackwardly tucked into..." Read more

    "...Also, the noise isolating works out pretty good. I don't even realize my roommate had walked into my room when I was testing the earphone...." Read more

    "...The good: tonal balance is very natural and open - better than I would expect at this price point and certainly enjoyable for on the go listening...." Read more

    "...do they have the range for very complicated music, but their bass is fantastic, and if you wanna listen to some ghetto blasting music one minute and..." Read more

    1,495 customers mention1,123 positive372 negative

    Customers like the quality of the headphones. They say the build quality seems sturdy, the L-shaped plug is sturdy, and the jack looks beefy. Overall, customers find the headphones to be a solid pair of in-ears that provides excellent sound quality.

    "...That said they are surpisingly durable, I've untangled them at least once a day for 5 months and they seem just as sturdy as the day I bought them...." Read more

    "...The earphone is offering a pretty strong, punchy base which satisfy me when I listen to pop and rap like Dr. Dre and Black Eyed Peas...." Read more

    "...Sennheiser 685sPotential advantages over CX300s: more durable, better symmetrical cord split design...potentially shorter cord..." Read more

    "...1. klipsch image s4. As stated in review. horrible durability. no matter how careful u r.2. beats tour by dre. Comfort issues...." Read more

    1,121 customers mention906 positive215 negative

    Customers like the value of the headphones. They say it's a solid pair of in-ears that sound very good and is well worth the current 40% discounted price. Customers also mention that the quality-to-value is unbeatable, and the sound is the best for the price. Overall, customers find the product to be an awesome buy.

    "...CX- 5 stars. For the price their sound, comfort and durability are just astounding.QC- 3-4 stars...." Read more

    "...Yet, I can say it is excellent considering for the price tag.On acoustic:..." Read more

    "...Note: This is ranking sound quality and overall value, if you are looking for superior isolation look at the Monster Jams, or the Etymotic." Read more

    "...At that price the quality-to-value is unbeatable. Between the two, go for the Klipsch S4 if you're a bass-head or want the inline accessories...." Read more

    534 customers mention404 positive130 negative

    Customers like the comfort of the headphones. They say that they are supremely comfortable and securely fitted. Some say that the buds are comfortable to stick in their ears and provide a good fit for tall people. Overall, most are satisfied with the comfort and quality of the product.

    "...but after I was used to putting them in properly they became supremely comfortable and securely fitted...." Read more

    "...Likely Comparable: Good sound quality (better than stock buds), all day comfort fit..." Read more

    "...I find most buds will fit comfortably in my ear and most are secure...." Read more

    "...They also take forever to burn in, for me it took over 70 hours to get the best sound...." Read more

    410 customers mention307 positive103 negative

    Customers like the size of the headphones. For example, they say the earbuds fit well into their ears, they're compact and the rubber tips create a seal. Customers also appreciate the multiple ear buds sizes and the three different sizes of silicone cushions that fit various ear canal sizes.

    "...They make a nice tight fit in your ear canal and only after very extended periods will you notice them at all...." Read more

    "...Fit was good with the sleeves that came installed...several hours of listening didn't leave me fatigued or in pain from the fit...." Read more

    "...in your ear canal (I don't know what they're called) fit my ear canals just perfectly, the seal is phenomenal...." Read more

    "...Also the buds did not fit my ears quite as comfortably as others I have tried. At about $21 shipped, these are an AMAZING deal. 5 stars..." Read more

    523 customers mention303 positive220 negative

    Customers are mixed about the performance of the headphones. Some mention that high notes are noticeable, bells and chimes play perfectly, and they handle the newer recorded music wonderfully. They also have a comfortable shape and excellent mid and high tone production. However, others say that they stopped working after only using them for not even 5 months. Some customers also mention that the build quality seems to be good. However others say they don't work for them for running and the sound quality isn't quite what they wanted.

    "...I've owned the same pair of CXs for about 5 months and they still work great despite having gotten completely immersed in water twice...." Read more

    "...Before they stopped working after only using them for not even 5 months the only thing that I found to be very annoying is the fact the the left..." Read more

    "...than I would expect at this price point and certainly enjoyable for on the go listening...." Read more

    "...Not only do they have the range for very complicated music, but their bass is fantastic, and if you wanna listen to some ghetto blasting music one..." Read more

    236 customers mention106 positive130 negative

    Customers are mixed about the appearance of the headphones. Some mention that it has a pretty cool design, the pouch is really nice, and the cable design is unique. However, others say that it looks stupid, boring, and cheap.

    "...set of buds and offer great sound quality for the buck, but have a very odd look to them and also leave the low end of the spectrum a little flat..." Read more

    "...The asymmetrical design also is much better than I thought at first, it actually makes the cord much more manageable since the right ear's cord goes..." Read more

    "...these headphones all and to be quite honest with you they appear to look a bit awkward because I do not wear them behind the neck as the extended..." Read more

    "...I can't tell you how excited I was to receive the Senns. They look great and come with a really nice pouch, large enough that I can easily put my..." Read more

    451 customers mention36 positive415 negative

    Customers are not satisfied with the cord length of the headphones. They mention that it's longer for the right earbud and the left ear buds wire is half the length. Some say that the cord itself has an offset length.

    "...my Bose buds for regular music listening were as follows: the cord was too long so it interfered with my work, the control/mic portion added..." Read more

    "...body deals with the air pressure in your head because they block the ears so completely, screwing with the function of the eustachian tubes, so when..." Read more

    "...flaw, which made the first even more of a problem, is the asymmetrical wire design...." Read more

    "...The only weaknesses that I can say is that the pair I got had unequal wire lengths (the right line was twice as long as the left) which I can only..." Read more

    Have always bought these buds
    4 Stars
    Have always bought these buds
    First impression was the wires have gotten thinner where they tee off over the years. The bass response seemed, at first, to be slightly less than the ones I bought a couple few years back BUT I am hearing better clarity compared to my old ones. The older ones might have a little more bass response which is good if you’re out biking etc but the older ones had a muddy sound compared to the newer ones.So they’ll do the job.As per usual though along with the thinner wire the pouch seems thinner as well. I tossed it and will use my old one.
    Thank you for your feedback
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    Top reviews from the United States

    Reviewed in the United States on October 16, 2015
    2 people found this helpful
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    Reviewed in the United States on December 3, 2011
    2 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    José Luis Perez
    5.0 out of 5 stars Recomiendo
    Reviewed in Mexico on January 2, 2024
    A.K.
    5.0 out of 5 stars fette bässe, super klang, super preis/leistung: perfekt!
    Reviewed in Germany on February 8, 2024
    Customer image
    A.K.
    5.0 out of 5 stars fette bässe, super klang, super preis/leistung: perfekt!
    Reviewed in Germany on February 8, 2024
    p.s.: nach einigen tagen intensiven nutzens bin ich sehr begeistert, diese kopfhörer sind wie für mich gemacht und es zeigt mal wieder, dass man in dieser preisklasse sehr gut klingende headphones bekommt, die manch teures exemplar alt aussehen lässt.

    mein geliebter sony inear kopfhörer gab nach ca. 10 jahren den geist auf, es gibt ihn leider nicht mehr...r.i.p.

    ich habe als ersatz teure teufel inears und diesen sennheiser geordert,die 110 euro preisunterschied sind ausser bei der verarbeitung kaum zu spüren!
    überhaupt: ich hatte schon viele inears ausprobiert, die preise sind hier kein klarer indikator für die klangqualität, um die 30 euro gibt es sehr gutklingende modelle.

    mit den richtigen pads gibt es hier einen mächtigen bass auf die ohren, perfekt für drum&bass etc., richtig sitzenden stöpsel sind bei inears absolut essentiell, speziell für die bässe, ich habe eine große sammlung von alten inears und probiere immer aus.

    diese inears sind klein und leicht, sehr bequem.
    tatsächlich sind es die am angenehmsten und best sitzenden inears, die ich kenne, kein langsames rausrutschen etc. wie bei manch anderen, man spürt sie kaum.
    klasse!
    sie sind auf wunsch sehr laut, der klang ist für den preis wirklich erstaunlich, kommt den sony sehr nahe.
    bässe, mitten und höhen sind ausgeglichen, ich habe bassbetonte eq einstellungen und fest sitzende aufsätze, der bass geht tief runter und ist fett, dass es eine freude ist!

    die kabel sind hier sehr dünn und wirken nicht sehr robust, dafür macht der abgewinkelte stecker einen stabilen eindruck, mal schauen, wie lange das durchhält, hier hat der teufel klare vorteile.

    die teufel sind robuster verarbeitet, der klang bei klassik und pop super, aber der bass ist nicht so mächtig...geschmackssache.

    der klang dieser kopfhörer ist genau mein ding!
    für basslastige musik gefallen sie mir mehr als die teuren teufel kopfhörer, die dafür bei klassik etc. die nase etwas vorne haben.

    diese inears kann ich weiterempfehlen, bei dem preis wird es kaum bessere geben!
    ich habe sie gleich nochmal für meine frau geordert, die sie auch super findet.

    sie kommen meinen alten sony sehr nahe, ein würdiger ersatz.

    danke für das lesen und ihre geschätzte aufmerksamkeit!
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    7 people found this helpful
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    Geert
    4.0 out of 5 stars Goede klank
    Reviewed in Belgium on January 14, 2024
    Carole
    5.0 out of 5 stars très bon son, bonne isolation des sons extérieurs
    Reviewed in France on December 29, 2023
    Cliente Amazon1
    5.0 out of 5 stars Impresionantes!
    Reviewed in Spain on January 30, 2017
    3 people found this helpful
    Report