Sennheiser CX300 II CX 300 II Precision Enhanced Bass Earbuds, Black (Discontinued by Manufacturer)
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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
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Price | -5% $38.01$38.01 Typical: $39.99 | $139.99$139.99 | -5% $17.98$17.98 List: $19.00 | -16% $99.95$99.95 List: $119.00 | $34.99$34.99 | -10% $44.95$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
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Product information
Product Dimensions | 3.94 x 3.94 x 3.94 inches |
---|---|
Item Weight | 0.141 ounces |
Manufacturer | Sennheiser |
Language | English |
ASIN | B001EZYMF4 |
Item model number | CX300 II |
Customer Reviews |
4.2 out of 5 stars |
Best Sellers Rank | #19,196 in Electronics (See Top 100 in Electronics) #1,466 in Earbud & In-Ear Headphones |
Is Discontinued By Manufacturer | No |
Date First Available | February 4, 2009 |
Item Weight | 4 Grams |
Units | 1.0 Count |
Number Of Items | 1 |
Warranty & Support
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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.
CompatibilityThe CX 300-II is Compatible (listen only) with latest generation of tablets and 1/8" jack smartphones and portable music players.
WarrantyThe 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
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers 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
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
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
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
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
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
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
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
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
Reviews with images
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Top reviews from the United States
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Sound/Noise reduction- Do the CX 300s sound as good as the Bose QC 20s? No. Do they sound at least $35/$300= 11.7% as good? Absolutely. I would say they sound somewhere around 60-70% as good as the QCs. And around 70-80% as good for their noise cancelling ability despite the CXs only having passive noise reduction. If your mainly interested in noise reduction but don't want to shell out $300 these are without a doubt your best choice under $100. Sound quality alone there MAY be better sounding earphones out there for under $100 but I've certainly never heard them. If your something of an audiophile, don't mind putting a large sum of money into a few ounces of carefully constructed matter, and like the idea of owning Bose then the QCs are a good investment.
Durability- 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. The first time was being caught in a downpour for over an hour while they squished around in my soaked pocket. After that the right phone barely had any sound coming from it. I figured they were shot so I didn't give much thought when I accidently left them in with the laundry. Washed with hot water and detergent then dried on high heat, oh my poor abused trusty little earphones what a sad death... Oh My God They Work! Not only did they still function but both phones were back at full power and clarity. So if your phones ever die try throwing em in the wash and see what happens. The QCs seemed pretty durable as well. They were definitely constructed better than the CXs with a much stronger wire, I brought them to my welding job every day for 3 months and never had an issue. I never throw them in the laundry however so I can't speak for their washer resilience.
Comfort-The CXs are definitely the most comfortably ear phones I've used except for the QCs. They make a nice tight fit in your ear canal and only after very extended periods will you notice them at all. They do tend to gradually slip out, especially if you have slick waxy ear canals. The QCs were a bit ackward at first but after I was used to putting them in properly they became supremely comfortable and securely fitted. I'd work for hours going up and down ladders, using power tools, welding and never would they budge.
Other features- The CXs cord gets tangled way too easily. Put them in your pocket for five minutes and you'll have to do at least some untangling. Plus the split cords that run into the actual phones are very thin and I'm always concerned about tugging too hard when untangling. 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. The QCs cord was much stronger and thicker and less prone to tangle. However the built in amplifier was a hassle, it was 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 my pocket and having to charge it evert other day.
Conclusion- Ultimately just the fact that I can honestly make a fair comparison between the $300 Bose QC 20s and the $35 Sennheiser CX 300s is reason enough to buy the CX 300s. Even at their full $80 price the CXs are well worth it. Would I rather have my old QC 20s back? Yes. Would I have preferred to have never bought the QCs 20s and instead bought a pair of CX 300s? Well honestly I probably would have spent that $300 on something just as silly so in my case I'm glad I got to fully expierance the QCs and thus been able to give you this very excellent review. But as a normal person who values their money; don't waste your money on Bose unless that extra 30% better sound quality really impacts your listening.
CX- 5 stars. For the price their sound, comfort and durability are just astounding.
QC- 3-4 stars. I don't feel qualified to accurately rate them as I've never used any similarly priced earphones. They were definitely the best earphones I've ever used but I did always feel that I could have probably found a better pair for a better price. At least a hundred of that $300 is for having "Bose" printed on them.
I listen to my iPod at work/school/travel. Therefore, my earphone is daily beaten both indoor and outdoor. Basically, I listen to every kind of music from high def. vocal songs to strong base driven songs and from classic songs to pop songs. I would even use my earphone to listen to lossless music at home sometimes. When I pick an earphone, it has to offer me a strong beat of base while providing me a high level of clarity. I am not an audiophile who would spend $$ and do all the professional things even for a portable music player. Nothing is better than listen to the original instruments and voices at live. However, I am pretty picky on the quality of audio products since my dad and my uncles are audiophiles.
Little history of what I have owned:
I have own the Bose in-ear 2 headphone for almost 6 years. Currently it is my 2nd pair already and it never disappoint me, I really love it. However, the wire that connecting the 3.5mm head has wore out and it is starting to break apart. So, I need to search for a replacement and I want to try something new. Other earphones that impress me the most are Shure E3c and Westone UM2. The reason why I didn't pick them is mainly because of the price tag.(I am a student.)
Why I picked this:
I have read the review from Amazon and some other audiophile's forums. People claim that this earphone is an 20 bugs earphone which offering 100 to 200 bugs earphone's quality. There is not much negative feedback from users as well. Therefore, I think it is worth for me to give a try!
First impression on sound:
When I received it from Amazon, I plugged it into my iPod right away. First off, it has a very high treble which is very annoying to me but I guess maybe this is normal. All in all, my Boss has processed all the EQ setting with a chip on the earphone for me already and I may fooled by that. I have to set my EQ to reduce the treble. After the setting is done, I tested it out with different types of songs.
Performance of this earphone:
On base:
It is very impressive and I can say it is not worst than my Bose. 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.
On vocal:
I tested with the song Habanera and Time To Say Good Bye, it is not crystal clear but I believe an adjustment on high pass in EQ would solve the problem. Yet, I can say it is excellent considering for the price tag.
On acoustic:
I tested it with a lossless version of Hotel California live version, it is impressive and very clear. I can clearly hear and distinct different layers of the song.
On general:
It is very precise and it does emphasis the base while it won't kill the clarity of other elements of your song. 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.
In conclusion:
It is really an excellent earphone. A 20 bugs earphone which offering the quality and performance very close to a 100-200 bugs earphone. One thing that I don't really like is that I have to deal with EQ setting in order to push the earphone close to my personal preference. I was thinking to give a 4 stars but really when I see the price again, it deserves a 5 star IMO. If you want an economic upgrade on your earphone and you do a bt care of the sound quality it offers, this is the best choice. If you consider yourself an audiophile, perhaps I don't think you would even glance on this product!
I don't now how durable is this earphone but again it just 20 bugs from Amazon. I don't mind to get another pair if it broken after couple years.
Disclaimer:
I'm sorry that you may have a hard time to read my review since English is not my first language.
The review is based on my personal preference on listening music and my two cents knowledge. I am not a profession on wave science. I don't mind you teach me or correct me if I made a mistake but if you do want to criticize my review, screw it.
Hope my review would become helpful.
Top reviews from other countries
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!
Reviewed in Germany on February 8, 2024
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!
El único detalle que no me acabó de gustar es el tacto a goma adherente del cable que hace se "enganche" entre él o con la ropa al meterlo en el bolsillo que según le vayas dando uso hace cada vez menos ese efecto.
Algo que puede ser bueno o malo, según cada uno, es que yo los uso en el trabajo y nunca puedo ponerme los dos cascos al mismo tiempo ni con la música al mínimo porque no oigo ni teléfono ni compañeros que me llamen jeje.