

🎶 Elevate your audio game — hear every detail, feel every beat.
The Sennheiser CX Plus True Wireless Earbuds deliver premium sound quality powered by TrueResponse transducers, featuring up to 24 hours of battery life with fast charging, effective Active Noise Cancellation, and customizable touch controls through a dedicated app. Designed for comfort and durability with IPX4 water resistance and multiple ear tip sizes, these earbuds offer a tailored listening experience perfect for professionals on the go.










| ASIN | B09BB9NTXD |
| Age Range Description | Adult |
| Antenna Location | For sports, cycling, gaming, listening to music |
| Audio Driver Size | 10 Millimetres |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 24 Hours |
| Battery Charge Time | 24 Hours |
| Best Sellers Rank | 2,028 in In-Ear Headphones |
| Bluetooth Range | 10 Metres |
| Bluetooth Version | 4.0 |
| Box Contents | CX Plus True Wireless Earbuds, Guide, USB-C Cable, Silicon ear adapter sets (XS, S, M, L), Safety Guide, Wireless Charging Case |
| Brand | Sennheiser |
| Brand Name | Sennheiser |
| Cable Features | Without Cable |
| Carrying Case Battery Average Life | 24 Hours |
| Carrying Case Battery Capacity | 24 Hours |
| Carrying Case Color | Black |
| Carrying Case Material | Aluminium |
| Carrying Case Weight | 47 Grams |
| Colour | Black |
| Compatible Devices | Cellphones |
| Control Method | Touch |
| Control Type | App, Touch |
| Controller Type | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.0 out of 5 stars 4,368 Reviews |
| Ear placement | In Ear |
| Earpiece Shape | Rounded tips |
| Enclosure Material | Aluminium |
| Form factor | In Ear |
| Frequency Range | 20 Hz - 20,000 Hz |
| Headphone Form Factor | In Ear |
| Headphone Jack | No jack plug |
| Headphones Ear Placement | In Ear |
| Is Electric | Yes |
| Item Type Name | True Wireless In Ear Bluetooth Headphones |
| Item Weight | 47 Grams |
| Item height | 47 millimetres |
| Manufacturer | Sennheiser |
| Model Name | 509188 |
| Model Number | 509188 |
| Network Connectivity Technology | Wireless |
| Noise Control | Active Noise Cancellation |
| Noise control | Active Noise Cancellation |
| Number of Items | 1 |
| Number of Power Levels | 15 |
| Product Features | Fast Charging |
| Sensitivity | 114 dB |
| Specific Uses For Product | Multimedia |
| Style Name | Single |
| Theme | Multimedia |
| Unit Count | 1.0 count |
| Water Resistance Level | Water Resistant |
| Wireless Technology Type | Bluetooth |
P**S
The sound is beautiful and full
I love the sound of these. The sound is wonderfully warm. Engaging, surrounding and coaxing, and the bass is excellent. Audio superlatives aside the next best thing I like about these buds are the fit. They're extremely comfortable, in my opinion only the Technic AZs better them, with the prior Sony C500/C700 models matching them. Both the Sonys and Technics are smaller and lighter, but these Sennheisers have a better in ear seal than both. Battery life seems good, ive never systematically tested them but ive also never exceeded their capacity in use. The ANC is decent, it works to a degree, it makes a difference. The sound profiles, including bass boost definitely have an effect, and the transparent hear through feature is very effective. Great for needing to keep an eye (ear) out on other things as listen while going about your daily basis. Bought these alongside multiple other pairs to compare and their combination of warmth, bass, comfort and great value for the price was unbeatable. Thoroughly recommend.
D**S
Great sounding for the price
These earphones sound great. They're my first set of true wireless earbuds so I was afraid of them falling out of my ears or getting lost, but they've so far stayed in my ears just fine. In the box you get a usb-c to usb-a charge cable, manuals, some replacement ear tips in different sizes, and the buds themselves with their charging case. First impressions were that the case felt robust and there was a good magnetic grab that stops the earbuds from falling out. I dropped the case by accident and it protected the buds perfectly without them flying out. The battery life is great, I tend to use the buds for 3-4 hours at a time, but after around 6 hours they do run out of power depending on the volume they're set at. The charge up again quickly when they're put back in the case, so this isn't ever really an issue. They are comfortable to wear, but after a few hours I did find that my ears got a little sore. I think this is pretty normal though! The noise cancelling is pretty good, but I really like the transparent mode - this allows you to instantly pause your music and use the anc microphone to hear what's going on outside to maintain a conversation - really useful in a shop when you reach the till. My only gripe is the touch controls - they're okay... they're a bit fiddly, you get audible feedback when you input commands, but they're very quiet and it's easy to miss so i often find that i skip tracks by accident instead of pausing them. Finally, the sounds quality. It absolutely slaps. For headphones at this price point, I'd expect them to be decent, but there isn't really any issue with bluetooth compression. The sound stage is wide and base and mid frequency response is good. The only drawback is that the low end gets a bit muddy when listening to fast metal, but this is really easy to clean up using the partner app you can download on your phone. The eq settings are easy to tweak to your liking and this makes them my favourite headphones by far.
A**.
Dead After a year - avoid
New Review: Now basically useless - a year of sitting on a desk and using for work / casual gaming. The battery now holds a whopping "one hour" of charge. I'd expected to get a couple of years consistent use out of them - but the batteries are obviously below par and don't hold the full charge like they used to. Avoid them. Old Review: Are you a PC user, with glasses, wanting wireless, good quality buds? You found them. I wear glasses, for years I've just 'put up' with headsets and non-stop moving the headset/adjusting my glasses. I'd occasionally get headaches etc from doing this. No matter the prescription, no matter how much I paid for padded headsets etc etc. These sound amazing - ofcourse my top end headsets out perform them - but for day to day listening for long periods, these are great. I use them whilst coding, listening to some high quality sound scapes and these things pick up the tiniest detail. I also use them when gaming - and I've noticed next to no latency at all. Something I was extremely worried about with a bluetooth solution. They are amazing for gaming too. My headaches are gone, my focus is improved - and they sound amazing, big overall win for me. Things I like most: - Automatically connecting / disconnecting from audio when taking out / placing in the case. - Removing an earbud/tapping one on the side, stops media from playing. AMAZINGLY useful in an office environment when people tap you on the shoulder etc. - Charge / battery life. I keep these in all day - but the battety has yet to die in use, that's because when I nip to the loo or make a brew - they go in their case and fast charge. Unless you intended to sit in one spot for a solid 8 hours, I doubt battery life will be an issue for you. - Sound, obviously, I think these tick all my boxes. Minor cons - The ear tips just aren't that comfortable. You have three sizes to pick from, and after using them for two or three hours you'll want to take them out to give your ears a five minute break.
R**R
Sound quality is fantastic but build quality maybe not
I was blown away by the sound quality of these earbuds when I first tried them, they are fantastic. They also have a great battery life that lasts me roughly a week. The fit is really good with some adjustment, and the touch controls are fantastic. However, recently my left earbud suddenly stopped working after around 4 months of use which was fairly disappointing, customer support was swift though and they are now being repaired.
S**E
CX Plus Wireless Earbuds
Having suffered the death of my music player and earbuds the same week, I bought these to go with my new Hiby R3. Connection was very quick and painless, and bluetooth range is pretty good. Dual connection would have been nice - I use a separate player to save my phones battery, and the ability to pair to the phone and player at the same time would be good. Sound quality is very good - I do have moderate hearing loss and wear hearing aids during the day, and the Sennheiser sound is my go to for the best sound for my hearing. These didn't disappoint. Fit is very good. Again, this is subjective as everyones ears are different. The touch sensitive controls are maybe a little too sensitive and I found it easy to pause / rewind / FF by accident. I have used them for hours at a time with no problems with them falling out or feeling uncomfortable. Noise cancelling seems good -I have only tried it with my TV up loud, not on a flight. Battery life is good. After the first charge I got 7 hrs continuous use ( without noise cancelling ). It is worth downloading the app for a bit of customisation.
J**E
Nearly Audiophile grade earbuds for a great price
The CX True Wireless earbuds are truly amazing in terms of audio output, fit and features. I have used Sennheiser headphones and ear buds in the past but what kept putting me off of them was the flat EQ curve that they have. Which is fine for audio production or trying to pin point everything in a mix but for general consumption I like to have a mixture of good high end and bass. I was surprised that these offer a customisable EQ with the app and even turning up the bass or enabling bass boost it does not fight with the mix and everything still sounds clean. The EQ out of the box is good but it's worth tinkering with the Smart Control app to get the best listening experience for you. These buds do offer a wide sound stage and it's impressive with how much of the mix you can hear given the price of these are not that bad compared to other buds out there like the Sony Linkbuds. If you are an audiophile or you are looking to get more out of your music through a set of wireless earbuds then I would look no further unless you are looking at the higher end buds that are out there. For the price of these you cannot complain but I will write this Disclaimer. If your set of CX Wireless buds ask you to update the firmware, please do otherwise you will encounter issues that were written in the lower star reviews.
G**O
2 years live time
The sound quality is good, is comfortable and hve good control, but after 2 years stopped to work out of the sudden. Now I don't think I buy the same one again.
D**N
Great pair of buds!
Been a Sennheiser fan for many years and always look to them when looking for new headphones. Purchased these and really pleased for the price. They are 90% of what the Momentum 3/4 earbuds are for less than half the price so well worth the money. They look and fit really well (subjective I know). They sound great (used on a Google Pixel 7 with aptx turned on streaming from tidal/spotify) for music, videos etc especially with bass boost on and a V band on the EQ. Touch controls work well most of the time. Call quality is good in a quiet area but can suffer with the 'i can't hear you' in busy environments occasionally. All wrapped up in a neat little durable case (a lot smaller and more versatile than the M4's!). Negatives - Call quality sometimes as mentioned above and have had the odd connection to the app issue. Wireless charging would of been nice too but overall, really good for the price!
Trustpilot
1 month ago
5 days ago