Sennheiser CX 300S In-Ear Headphones - Black

Sennheiser CX 300S In-Ear Headphones - Black
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Boost your sound with Sennheiser’s CX 300S In-Ear Headphones which offer amazingly detailed sound reproduction and enhanced bass response thanks to Sennheisers transducer technology. The in-ear design reduces ambient noise to a minimum, and the included set of ear-adapters guarantees an individualized fit with four sizes (XS, S, M, L) to choose from. A Smart remote enables you to pause music and take calls across all devices.

Key Features

  • Constructed to be ultra-small, Sennheiser CX 300S fits readily in bags and can be used anywhere.
  • Allows you to minimise the ambient noise around you and listen to music without anyone disturbing you as it is built with ergonomic in-ear design.
  • Comes with ear adapter sets in four sizes to let you choose between extra-small, small, medium, and large.
  • Provides convenience and comfort while listening to music as it has a silicon rubber earpad and durable cable that can be untangled easily.
All Product Details
Brand Sennheiser
Product Type Earphones
Headphones & Portable Speakers
Noise Cancelling Field Noise Isolating
On-Ear Controls In line remote and mic
Wired / Wireless Wired
Waterproof / Sweatproof No
Connectivity Wired
Frequency Response 17-21,000 Hz (-10 dB)
Connection Type Wired
Connections 3.5mm headphone jack, angled
Manufacturers 24 Months
Sennheiser CX 300S In-Ear Headphones - Black is rated 4.3 out of 5 by 18.
Rated 5 out of 5 by from Sennheiser CX 300S I am more than happy with the Sennheiser CX 300S. They are an excellent pair of in-ear headphones with great ambient noise reduction, and they also have a built in microphone and remote for call and music control. They provide an excellent level of sound isolation and bass-heavy sound that will please all lovers of drum & bass, hip-hop and EDM. They do require a bit of running in before they perform at their best, but after a few hours of playing music, the high frequencies sound crisp and fresh, and bass notes display dexterity and discipline. I would defiantly recommend the Sennheiser CX 300S for all lovers of high quality music! [This review was collected as part of a promotion.]
Date published: 2019-03-25
Rated 4 out of 5 by from Great sound, minimalistic control. These in ear phones sound really good. They have silicone style seals in a range of sizes which help eliminate background noise effectively without the need for battery powered noise cancellation technology. The ergonomic angled design of the buds helps them fit easily in to your ear canal. My only reservation is that the cable handling noise can be a bit distracting for me, but only on the move. Sitting still on a train is fine. The pouch the come with is a nice touch too. [This review was collected as part of a promotion.]
Date published: 2019-04-03
Rated 5 out of 5 by from Top Quality Headphones A truly fantastic pair of in ear headphones, the sound quality is the best I have heard, the range is broad and the sound clear, even at high volume there is little to no distortion. The headphones themselves are tastefully designed and subtle when worn under a T-shirt or jacket, and the carry case is a nice touch that minimised the amount of time spent trying to find them in my bag. I was also impressed with the range of sizes in the additional earbuds that were provided. [This review was collected as part of a promotion.]
Date published: 2019-04-11
Rated 3 out of 5 by from Sennheiser - CX 300S a little disappointing! The sennheiser CX 300S in my opinion lacks bass and sounds to tinny. I tried the product with my phone , ipod,and with vinyl ,All had the same lack of bass sound.The ear buds are really comfortable to wear and the product is very well made.Comes well packaged with additional ear buds.There is also a nice pouch with a snap shut design.The adjuster on the cable length works well . Overall the CX-300S is a well made product but sadly not for me due to the lack of bass. [This review was collected as part of a promotion.]
Date published: 2019-03-22
Rated 5 out of 5 by from Good inexpensive earphones Really like the earphones, for the price, it is much better than those cheap no brand earphones. It is not the best, but for the price, it is worth it. I really like the carry case that comes with it, it is easy to open and close to get my earphones. I also like that the cable is at a 90 degree, so when I plug it into my phones and have them in my pocket, it avoids the cable from being bent whenever I bend down and raise my legs (I destroyed my previous earphones this way...). The only downside I can think of is that the control only has one button to play/pause, previous and next song. It doesn't have a button to control volume so I have to use my phone to increase/decrease volume. Other than that, it is an excellent earphone! [This review was collected as part of a promotion.]
Date published: 2019-03-27
Rated 5 out of 5 by from Sound Quality First Approach Whilst the basic external materials point to a lesser price point, it's clear upon listening that the claims of detailed sound reproduction and enhanced bass are where the focus have been. Challenging bass notes were handled perfectly and together with a perfect fit out of the box, the isolation and sound experience was top notch. I like the unassuming look. Just the jack lead means for many iPhone users, the adaptor dongle is required. [This review was collected as part of a promotion.]
Date published: 2019-03-22
Rated 3 out of 5 by from CX 300S I received these recently, to start off for their low price they are acceptable for most, although anyone who does like some integrity in their audio, may find themselves disappointed. Personally the lowend wasn’t strong enough and it doesn’t really have a big soundstage compared to some competition. Often when using these headphones and medium to high volume I find the mid and high range far too intense. The high end can sound particularly tinny when it’s loud, sometimes unbearably so. The build quality is decent, cable seems a little flimsy at the ends. A few features that are lacking would be the neglect for anyone with smaller ear canals the smallest option are still too large for my ears. Additionally there are also no dedicated media skip/precious keys. [This review was collected as part of a promotion.]
Date published: 2019-04-12
Rated 4 out of 5 by from Good Sound Nicely made with a good selection of ear plugs. Sound for the price is good and call quality is very good as well. I like the fact that the inline phone control also controls the music on some products. Noise isolation is good when you use the correct fitting ear piece. I enjoyed using these earphones and the sound is rich and clear. [This review was collected as part of a promotion.]
Date published: 2019-03-27
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What's in the box
  • CX 300S earphones
  • Ear adaptor set (XS/S/M/L)
  • Storage pouch

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