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

Visit the Sennheiser Consumer Audio Store

11,712 ratings

| 276 answered questions

Price:

$31.80 + $12.45 Shipping & Import Fees Deposit to Canada Details

Returnable until Jan 31, 2021

Brand	Sennheiser Consumer Audio
Connections	Wired
Model Name	CX 300 II
Color	Black
Headphones Form Factor	In Ear

About this item

Optimised 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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Customer Rating	(11712)	(12694)	(570)	(131)	(6448)
Price	$31.80	$29.99	$49.95	$29.95	$9.99
Sold By	Buy Top Tech	Amazon.com	Amazon.com	Amazon.com	Amazon.com
Color	Black	Black	Black	Black	Black
Fit Type	In-Ear	In-Ear	In-Ear	In-Ear	In-Ear
Item Dimensions	3.94 x 3.94 x 3.94 inches	2.63 x 1.50 x 6.75 inches	0.50 x 0.50 x 0.50 inches	0.50 x 0.50 x 0.50 inches	2.63 x 1.25 x 6.75 inches
Item Weight	0.14 ounces	0.28 ounces	0.38 ounces	0.35 ounces	0.11 ounces
Special Features	foldable, tangle-free-cord	android-phone-control	Lightweight, Noise Isolation, Microphone Feature, Tangle-Free Cord, Universal Phone Control	Lightweight, Noise Isolation, Tangle-Free Cord	sports-and-exercise

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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

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

11,712 ratings

4.0 out of 5 stars

Best Sellers Rank

#885 in Earbud & In-Ear Headphones

Is Discontinued By Manufacturer

Date First Available

October 2, 2001

Warranty & Support

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

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Important information

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BRAND NEW! sealed in the original retail packed. Ships Same or the Next Business Day from NJ

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5 star		55%
4 star		18%
3 star		10%
2 star		7%
1 star		9%

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Jon Reinschreiber

WARNING!!! It's a Counterfeit!

Reviewed in the United States on November 3, 2018

Verified Purchase

Over the years, I've owned multiple Sennheiser products, and they have all been quality pieces of equipment. As soon as I opened the box, I knew that this wasn't authentic Sennheiser. It looked and felt cheap, the logo wasn't right, the plug wasn't right, and the way that the wiring was assembled made the earbuds almost unusable.

When I examined the packaging, I found that Sennheiser's QR label and authenticating holographic sticker were absent.

The final nail was going to the Sennheiser website to discover that there is no such model as the CX 300 II. The current model is the CX 300.

159 people found this helpful

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Tobin

Truly Amazing Earbuds But...(Please Read)

Reviewed in the United States on January 9, 2017

Verified Purchase

I had a hard time giving these 4/5 and not 5/5 stars, but there are a few thing worth noting.

Cons first:

The plastic around the audio jack broke after only a few months of use. This could be due to earbuds being plugged into an iPhone 6+ which leave much room in my pocket, putting strain on the L-shaped jack when taking my phone in and out of my pocket. I rode the subway to work 5 days a week last year, and was constantly taking my phone in and out of my pocket to change the song which inevitably put stress on the jack. I'm living in South America at the moment, and it isn't recommended to keep your phone out on your lap or even in your hand while going place to place. As is such, the jack broke so I ended up having to tape things back in place, though the cable eventually got too twisted/frayed and now only one of the buds works, the other intermittently. The jack is not made of the highest quality/most sturdy plastic, but it shouldn't be a problem if you're cognizant of the issue. This issue is not nearly enough to put me off from these earbuds.

This brings me to the second issue. You have to take your phone in and out of your pocket constantly the change the song, to answer a call/text, etc. because there isn't a microphone or pause/play button. And because these headphones are wonderfully noise-isolating (which I'll get to in a minute), you have to either pull them out of your ears when someone starts talking to you or pause your music directly on your phone/mp3 player which can be inconvenient if placed in your pocket or bag. This issue doesn't nearly ruin these earbuds for me.

The third issue is that of having two different cable lengths between the earbuds. This supposedly helps prevent tangling, but I haven't noticed it to help at all. All this does is make the headphone tug on your ears unevenly when you inevitably have to take them out to talk to someone (because there's no pause/play button). I resorted to wrapping the longer cable around the back of my neck, or else the slack from the longer cable would annoyingly hang in front of me and unevenly distribute the tugging weight between my ears. Still, this issue doesn't turn me off from these earbuds.

Before I get to the pros I'll note that the problems with the jack and the tangling could have been avoided if I took a little better care of these earbuds. I got these earbuds mostly for commuting and to toss around without worry, unlike a few other pairs of earbuds and over-ear headphones that I use at home, on airplanes, etc.

Pros:

For the money, the sound quality is unbelievable. Sharp highs, clear mids, and deep, booming bass that I've rarely found in any earbuds at any price level. This versatility came as a very pleasant surprise to me. Like my more expensive over-ear headphones, I found myself discovering new layers to some of my favorite songs which is always awesome. This has to do with both the clarity of the earbuds, as well as their excellent noise isolation characteristics. To reiterate, sound quality on these earbuds is truly out of their league.

Noise isolation is excellent as I mentioned. The earbuds come with three different size rubber inserts. Whichever size is good for you (the large ones for me), they fit snuggly and comfortably in your ear. The few times I've taken a long bus ride and didn't want to take my over-ears with me, these stayed comfortable in my ears and kept my ride quiet the entire time. They never fell out, needed to be adjusted or needed a break from due to discomfort. Unlike comparable earbuds, you don't have to jam these ones in your ears, sacrificing your listening comfort, just to reap the benefits of their noise isolation. As they are noise-isolating, not noise-canceling, they don't require batteries or charging which keeps them light and as far as I'm concerned and puts them at no disadvantage to noise-canceling options when it comes to blocking out surrounding noise.

Minimalistic design. The headphones are completely black except for small chrome rings and the hardly noticeable Senheiser logo on the back of the earbuds. You could argue that their design is boring, or maybe even cheap (it just says CX300II where a microphone should be) but to me they're perfectly subtle and understated. If you're looking for blingy earbuds, look elsewhere. The swagger of these headphones comes out in the areas where they truly excel, in the aforementioned sound quality and noise isolation. Seems like these earbuds were engineered with their performance in mind before anything else, and that's okay with me.

Overview:

If you take care of these earbuds, can look past some slight design flaws, I promise you will be very VERY happy. These headphones seem to be unrivaled at this price range or even the next level up when it comes to their strong points. Sound quality, comfort (after some adjustment) and noise isolation are the most important things to me, and let's be honest...headphones don't break themselves and you can certainly be more careful with them than I was. Having learned my lesson, I'm ordering another pair without hesitation. Now that you're informed, you should too!

169 people found this helpful

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Daniel W.

Worth every penny.

Reviewed in the United States on May 31, 2018

Verified Purchase

Once upon a time, I purchased the Sennheiser CX200 Street II earbuds for my listening pleasure. I enjoyed them so much that I bought a replacement pair just in case the first ones broke.
Fast forward quite a few years to 2018, my last pair of CX200 Street II's finally bit the dust with a wiring issue from excessive use. (I used them about 10-12 hours a day. Every day.)

Instead of getting another pair, I decided I could trade up and see what I might be missing out on. In comes the CX300 II's. They did not disappoint.
- Same enjoyable sound quality
- Same comfortable fit
- Don't make my ears excessively sweaty
- Good cable length and durability
- Nice carrying pouch it comes with

My only constructive criticism is that the bass in the CX300 II feels much weaker than the CX200 Street II. Not a huge gripe though, still sounds pretty good all things considered.
If each iteration is this painless of a change, I think I'll just stick with Sennheiser CX series earbuds for the rest of my life. Thanks for an excellent product.

13 people found this helpful

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Slim2u

These are fantastic. In fact

Reviewed in the United States on July 30, 2017

Verified Purchase

If you have never owned Sennheiser earbuds, then you have not owned high-quality earbuds. These are fantastic. In fact, this is my second pair that I use at my office for listening to music or voice messages without interrupting others in neighboring offices. Because I'm a little older and have impaired hearing (but not enough for hearing aids), these earbuds transmit a broad range of sound that makes ever message and all music extremely clear to me. The bass tones in music are especially well delivered though they do not overpower or distort the entire music's sound. I listen to nearly all classical music (the remainder of my music is comprised of various classically trained Christian soloists), and these earbuds are quite amazing at providing beautiful sound through an extremely broad range. They deliver what they promise. I do not believe you will be disappointed with them should you purchase them.

11 people found this helpful

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A. V. Jones

Great sound, but a poorly-constructed product

Reviewed in the United States on August 16, 2015

Verified Purchase

While the sound coming from the buds is what I expect from a Sennheiser product, the overall construction is horrible.

The plug connecting the earbuds to my phone recently started coming apart. Now, I am not hard on my earbuds. I'm not a runner, so these are not being bounced up and down or undergoing any kind of rough usage. I mostly use these during my commute to/from work and to listen to music while at my desk.

After just over one month of usage (purchased these on July 3), I'm now having to buy yet another pair of earbuds. They will not be Sennheisers.

40 people found this helpful

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Brandon McGehee

NOT THE SAME AS ORIGINAL FROM A FEW YEARS AGO

Reviewed in the United States on August 14, 2019

Verified Purchase

I have a pair of these earbuds from a few years back. Unfortunately, I ran them through the washer and the left earbud started going in and out. I decided to buy another pair. THEY ARE NOT THE SAME QUALITY. The cord for the new earbuds are noticeably thinner than the original ones. The new ones look like they are scuffed up as well. Sound quality is completely different. I played the same part of a song on the new one's right earbud and my old one's right earbud. The new ones are horrendous in their sound quality. The old pair is WAY better. It's unfortunate they discontinued this item and as well dropped off in quality. DO NOT BUY. I am returning these. Very disappointed.

Picture shows old (on left) and new (on right)

6 people found this helpful

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Top reviews from other countries

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Jurji

Cuidado con los vendedores externos (Principalmente de china)

Reviewed in Spain on October 2, 2018

Verified Purchase

Compre este producto hace tiempo a amazon y me llego sin problemas, unos cascos originales, con su numero de serie en la caja y demas.

Tiempo despues vi que un vendedor externo, en este caso Tech & Nology (https://www.amazon.es/sp?_marketplaceID=A1RKKUPIHCS9HS&seller=A2C4MMR2CMM3V4), los tenia rebajados a 19€, por lo que me anime a comprar un segundo juego.

Cuando recibi los cascos, aunque parecian originales, pude comprobar comparando con los anteriores que tenia que no lo eran. La caja no tenia la pegatina con el número de serie, las almohadillas de goma de los auriculares quedaban con mas separación del anillo metalico (en los originales quedan casi pegadas, apenas hay una separación de un mm) y en algunas otras partes de goma se veian restos de goma del molde que no tendrian que quedar ahi.

Son unos cascos muy falsificados y los vendedores externos se aprovechan para colarlos, por lo que lo mejor es tener cuidado con los vendedores externos, principalmente los que ponga que son de china (CN).

En si los cascos, por mi parte se merecen 5 estrellas (Este es el tercer juego que tengo desde los primeros que compre hace ya unos 11 años y siempre repito), solo les pongo esta valoración para llamar la atención de posibles compradores.

124 people found this helpful

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Lorenzo

Cx300II?

Reviewed in Italy on March 26, 2018

Verified Purchase

Arrivo da un altro paio di Cx300II. Le cuffie arrivatemi sono di qualità sensibilmente inferiore, sia per quanto riguarda materiali, sia per qualità audio (medi piatti e muddy, alti fastidiosi). Si nota benissimo anche dalle foto, la custodia inoltre è differente dalla mia precedente e anche da quella mostrata in foto da altri clienti. Ho il fondato sospetto che possa esserci qualcosa che non va e chiederò restituzione, state attenti.

123 people found this helpful

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Verarbeitung Mangelhaft (Kabelbruch) Sound sehr gut

Reviewed in Germany on June 26, 2018

Verified Purchase

Dies waren inzwischen meine vierten Sennheiser CX 300 II. Dazu muss ich sagen, dass der Tragekomfort und Klang wirklich ausgezeichnet ist, die Verarbeitungsqualität ist allerdings wirklich miserabel, wie man an meiner vierten Bestellung sehen kann. Es kam bei jedem dieser Inear-Kopfhörer zu einem Kabelbruch, entweder funktionierte eine Seite nicht mehr oder der Klinkenstecker hatte einen Wackelkontakt. Ich werde mir kein fünftes paar Sennheiser CX 300II kaufen und mich anderweitig umschauen, falls jemand gute Erfahrung hat, bin ich in den Kommentaren ganz Ohr.

Edit: Ich habe sie nochmal probiert, weil ich bisher keine Kopfhörer gefunden habe, die so gut im Ohr sitzen. Die neuen haben allerdings genau wie die anderen auch einen Wackelkontakt.

Amazon war vorbildlich und hat sie ohne Probleme wieder ausgetauscht.

Sennheiser lässt hier wirklich minderwertiges Material verarbeiten. Enttäuschend

96 people found this helpful

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A Customer

I managed to lose a set of CX 300 I's bought 10 years back and am gutted as they were the best in ear buds I'd ever owned

Reviewed in the United Kingdom on February 9, 2018

Verified Purchase

Last summer, I managed to lose a set of CX 300 I's bought 10 years back and am gutted as they were the best in ear buds I'd ever owned. I'm an audiophile, but don't like to spend too much money on earbuds & headphones. These are a close second . . . I'm still breaking them in, so the verdict isn't in yet . .. but they are getting progressively warmer with each use.

BTW: before ordering these, I was seduced by the reviews for some Betrons. The Betrons arrived with a bent piece of mesh in one of the buds & were quite possibly the cruelest thing I have ever done to my ears. If you care at all about sound don't buy the Betrons, but these.

32 people found this helpful

Matt

Poor Quality!

Reviewed in the United Kingdom on December 21, 2017

Verified Purchase

These headphones sound great, but they only last for a few months. I am currently on my fourth pair in just over two years. Each time, it's the same issue in that they stop working in one ear. I have fooled myself into thinking that each pair I buy will last longer than the last, and I have been wrong every single time. Well no more, I've just ordered a different brand and won't go back to Sennheiser ever again.

43 people found this helpful