Sennheiser CX 300S in Ear Headphone with One-button Smart Remote - Black
Optimize your sound with the Sennheiser CX 300S earphones, which offer amazingly detailed sound reproduction and improved bass thanks to Sennheiser transducer technology. The ear canal design reduces ambient noise to a minimum and the included ear adapters (XS, S, M, L) guarantee an individual fit in four sizes. The smart remote lets you control your music and answer calls. This product is the successor of the CX 3.00 with remote control.
Optimize your sound with the Sennheiser CX 300S earphones, which offer amazingly detailed sound reproduction and improved bass thanks to Sennheiser transducer technology. The ear canal design reduces ambient noise to a minimum and the included ear adapters (XS, S, M, L) guarantee an individual fit in four sizes. The smart remote lets you control your music and answer calls. This product is the successor of the CX 3.00 with remote control.
Optimize your sound with the Sennheiser CX 300S earphones, which offer amazingly detailed sound reproduction and improved bass thanks to Sennheiser transducer technology. The ear canal design reduces ambient noise to a minimum and the included ear adapters (XS, S, M, L) guarantee an individual fit in four sizes. The smart remote lets you control your music and answer calls. This product is the successor of the CX 3.00 with remote control.
Optimize your sound with the Sennheiser CX 300S earphones, which offer amazingly detailed sound reproduction and improved bass thanks to Sennheiser transducer technology. The ear canal design reduces ambient noise to a minimum and the included ear adapters (XS, S, M, L) guarantee an individual fit in four sizes. The smart remote lets you control your music and answer calls. This product is the successor of the CX 3.00 with remote control.
in 7 offers
The lowest price for Sennheiser CX 300S in Ear Headphone with One-button Smart Remote - Black right now is $63.10 at desertcart.com.au, compared across 4 retailers.
The all-time low was $3.14 on 23 Apr 2026 — today's price is 1910% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 5 Oct 2026.
Last updated at 05/10/2026 05:05:59
CX 300S in Ear Headphone with One-Button Smart Remote - Black
Delivery between 11–14 Oct $29
CX 300S in Ear Headphone with One-Button Smart Remote - Black
Free delivery between 14–16 Oct
Sennheiser CX 300S In-Ear Headphones - Black
Delivery between 9–14 Oct $7.95
Sennheiser CX 300S In Ear Headphone with One-Button Smart Remote - Black
Delivery between 9–13 Oct $41
originally posted on jbhifi.com.au
I won't lie, these were my first 'big boy' headphones since graduating from less good sound quality competitors. The bass on these is insane, noise cancelling excellent if you use the right fitting inear mould. I've had them since mid 2019 and are still going strong, they went through a washing machine in the leather case that comes with them and have had zero problems whatsoever. I will absolutely buy these again if the need ever arises. Wonderful headphones. Only problem is they can be uncomfortable for long periods of time (think plane trips 5+ hours, anything shorter is fine) and if you're walking super fast or running they probably won't be as secure. Other than that, wonderful, I love them.
originally posted on jbhifi.com.au
I got these as a birthday present and I must say, the audio from these are magnificent. They have vibrant mids, good bass, and can block out a large amount of background noise such as car engine, and loud shopping centre (you just need to adjust the volume as per liking). I only have two complaints about these. 1. When I first got them if you tapped the part where the audio connecter bends (it has a 90 degree angle plug which I really like) the audio would sometimes cut out, but as long as you don’t accidentally knock it this will almost never happen. And 2. These fall out super easily so if you are looking to buy these as your next pair of workout earphones, DON’T. But as long as you aren’t wearing these while working out or jogging they are excellent.P.S. I have ... MoreI got these as a birthday present and I must say, the audio from these are magnificent. They have vibrant mids, good bass, and can block out a large amount of background noise such as car engine, and loud shopping centre (you just need to adjust the volume as per liking). I only have two complaints about these. 1. When I first got them if you tapped the part where the audio connecter bends (it has a 90 degree angle plug which I really like) the audio would sometimes cut out, but as long as you don’t accidentally knock it this will almost never happen. And 2. These fall out super easily so if you are looking to buy these as your next pair of workout earphones, DON’T. But as long as you aren’t wearing these while working out or jogging they are excellent.P.S. I have seen a lot of reviews of this product breaking or being unreliable, but I have not experienced it, that doesn’t mean it won’t happen so keep that in mind.
originally posted on harveynorman.co.nz
I recently bought these headphones to replace a different model of senneheiser in-ear buds that I had been using. The original ones only lasted about a year and the cable ends at the ear buds started to fray and wear. As I was impressed enough with the sound compared to the price I opted to replace them with buds from the same manufacturer. The new buds were slightly cheaper and have, it seems to me, a better bass response and general sound quality. I wear them alot mainly whilst watching youtube videos on my tablet. I find them comfortable and frequently fall asleep with them in. The fit range is good, I use the biggest plug. The ambient sound suppression is very good and can be used to quieten the wife and child whilst reading the inter-web, without music.
| Brand | Sennheiser |
| Form | In-ear |
| Type | Headphones |
| With Microphone | Yes |
| Colour | Black |
CX 300S in Ear Headphone with One-Button Smart Remote - Black
Delivery between 11–14 Oct $29
CX 300S in Ear Headphone with One-Button Smart Remote - Black
Free delivery between 14–16 Oct
Sennheiser CX 300S In-Ear Headphones - Black
Delivery between 9–14 Oct $7.95
Sennheiser CX 300S In Ear Headphone with One-Button Smart Remote - Black
Delivery between 9–13 Oct $41
I won't lie, these were my first 'big boy' headphones since graduating from less good sound quality competitors. The bass on these is insane, noise cancelling excellent if you use the right fitting inear mould. I've had them since mid 2019 and are still going strong, they went through a washing machine in the leather case that comes with them and have had zero problems whatsoever. I will absolutely buy these again if the need ever arises. Wonderful headphones. Only problem is they can be uncomfortable for long periods of time (think plane trips 5+ hours, anything shorter is fine) and if you're walking super fast or running they probably won't be as secure. Other than that, wonderful, I love them.
I got these as a birthday present and I must say, the audio from these are magnificent. They have vibrant mids, good bass, and can block out a large amount of background noise such as car engine, and loud shopping centre (you just need to adjust the volume as per liking). I only have two complaints about these. 1. When I first got them if you tapped the part where the audio connecter bends (it has a 90 degree angle plug which I really like) the audio would sometimes cut out, but as long as you don’t accidentally knock it this will almost never happen. And 2. These fall out super easily so if you are looking to buy these as your next pair of workout earphones, DON’T. But as long as you aren’t wearing these while working out or jogging they are excellent.P.S. I have ... MoreI got these as a birthday present and I must say, the audio from these are magnificent. They have vibrant mids, good bass, and can block out a large amount of background noise such as car engine, and loud shopping centre (you just need to adjust the volume as per liking). I only have two complaints about these. 1. When I first got them if you tapped the part where the audio connecter bends (it has a 90 degree angle plug which I really like) the audio would sometimes cut out, but as long as you don’t accidentally knock it this will almost never happen. And 2. These fall out super easily so if you are looking to buy these as your next pair of workout earphones, DON’T. But as long as you aren’t wearing these while working out or jogging they are excellent.P.S. I have seen a lot of reviews of this product breaking or being unreliable, but I have not experienced it, that doesn’t mean it won’t happen so keep that in mind.
I recently bought these headphones to replace a different model of senneheiser in-ear buds that I had been using. The original ones only lasted about a year and the cable ends at the ear buds started to fray and wear. As I was impressed enough with the sound compared to the price I opted to replace them with buds from the same manufacturer. The new buds were slightly cheaper and have, it seems to me, a better bass response and general sound quality. I wear them alot mainly whilst watching youtube videos on my tablet. I find them comfortable and frequently fall asleep with them in. The fit range is good, I use the biggest plug. The ambient sound suppression is very good and can be used to quieten the wife and child whilst reading the inter-web, without music.
I had heard from others Sennheiser is well known brand and good reputation. This was my first Sennheiser item and i bought this at great price when it was on special.I purchased other brands earphones before but it didnt meet my expectation. I wanted clear sound with some bass. And i did not want wireless one to avoid frequent charge.With no hesitation, I ordered a white one and it came with such a nice package. Different size earplugs let me enjoy more by minimising surround noise. Nicely fit and long enough cable. Box came with small pouch to keep my earphone safely when carried.This is one of the items that i never regret paying and possessing. Sound is clear with abundant bass (enough to me) and design is very neat and advanced feature in my point of view. I ... MoreI had heard from others Sennheiser is well known brand and good reputation. This was my first Sennheiser item and i bought this at great price when it was on special.I purchased other brands earphones before but it didnt meet my expectation. I wanted clear sound with some bass. And i did not want wireless one to avoid frequent charge.With no hesitation, I ordered a white one and it came with such a nice package. Different size earplugs let me enjoy more by minimising surround noise. Nicely fit and long enough cable. Box came with small pouch to keep my earphone safely when carried.This is one of the items that i never regret paying and possessing. Sound is clear with abundant bass (enough to me) and design is very neat and advanced feature in my point of view. I am super satisfied with this and carrying it all the time:)
I honestly can't comment on the sound quality of these - I can't wear them long enough to get a good idea. For my ears they are at best uncomfortable, and at worst fall out; and a fit of any security runs a knife edge of blocking that ear from hearing anything at all.Also, the way vibration conducts through the cord into the ears is ++not enjoyable: merely breathing results in earthquake-like rumbling. Maybe I would get used to that eventually, but a) I shouldn't have to; b) I don't want to; and c) they don't stay in, remember? ;pThis has been my first and last experiment with wired in-ear 'phones.
Awesome ear buds for their price. Come with adjustable ear pieces. Built in controls perfect for skipping songs direct from the cable. Sound quality is sensational and they are so comfortable and light that you won't even realise you're wearing them!
These earphone are fairly high quality for the price they generally sell for. They have the classic sennheiser crispness to the mids and highs, with the bass being okay for in ear headphones. I found the supplied ear tips to be fairly decent, with the medium sized ones fitting my ears the best. Meaning I was a little devastated when one of the tips decided to go missing. Another note is that a lot of the handling noise on the cable makes its way to your ear.The problems are mostly with the durability of these headphones, with mine breaking already after 3 months of near daily use. The 3.5mm jack split, leaving the headphones essentially dead. I was a little rough with the headphones, but for earbuds that are expected to be something you wear on the go, they ... MoreThese earphone are fairly high quality for the price they generally sell for. They have the classic sennheiser crispness to the mids and highs, with the bass being okay for in ear headphones. I found the supplied ear tips to be fairly decent, with the medium sized ones fitting my ears the best. Meaning I was a little devastated when one of the tips decided to go missing. Another note is that a lot of the handling noise on the cable makes its way to your ear.The problems are mostly with the durability of these headphones, with mine breaking already after 3 months of near daily use. The 3.5mm jack split, leaving the headphones essentially dead. I was a little rough with the headphones, but for earbuds that are expected to be something you wear on the go, they weren't suited for the task.
Good Points: The microphone works well.Improvement Points: The shape of the headphones are not comfortable. I had a pair of inner ear Sennheiser headphones for years and they had an excellent sound quality and were very comfortable. These headphones are the complete opposite. They actually irritate my ears and weirdly when I type I can hear a horrible high pitched scratchy noise in the headphones. The bass is lacking and general sound quality is pretty poor for music. Overall, would not recommend.
Just the instrument I've been looking for to reproduce the perfect balance of Bass Mid-range & crisp Tweeter effects. (Be sure the ear bud is fitted in your ear to form a seal for best sound) I definitely recommend these for the audiophile listeners and those that just want great sound with the old school cables, which by the way are very easy to untangle due to its design. Comfortably Loud enough in the ear considering the bud is still discretely small, comfortable in bed sleeping on it in my ear. Great gift idea for any person who loves it when their music just sounds perfect.
Acceptable sound quality for the price (i.e. better than the tin can apple earphones, which is akin to being the best downhill skier in Mexico); however, after a month and a half of light/routine use and standard care, the left side stopped working completely. Unacceptable--nobody expects a world class product a $50 price point, but it should at least be durable enough to last beyond the first month and half. Fool me once...
| Brand | Sennheiser |
| Form | In-ear |
| Type | Headphones |
| With Microphone | Yes |
| Colour | Black |