Sennheiser CX True Wireless review: Jack of all buds

yy2020 recommended

Sennheiser CX True Wireless

The Sennheiser CX True Wireless are a versatile pair of true wireless earphones at a reasonable price. They don’t excel at anything, but they reliably tick most of the boxes you’d want in a couple of low to mid range buds.

Sennheiser has been in the true wireless headphone space for a while now, and with the Sennheiser CX True Wireless they aim to make headphones with a more affordable price tag. This pair of headphones lack active noise cancellation, but otherwise offer features in line with Sennheiser’s more expensive models. Is the CX True Wireless the next high-value competitor?

East Sennheiser CX True Wireless Review comes from the audio experts at our sister site sound guys. Verify his in-depth version of the Sennheiser CX True Wireless.

Who is the Sennheiser CX True Wireless for?

  • Any looking for a new pair of headphones that can last all day and won’t break the bank.
  • athletes looking for something sweat resistant but don’t mind noise cancellation.

How are the Sennheiser CX True Wireless?

Sennheiser CX True Wireless earphones and case next to a phone.

Sam Smart / Android Authority

The Sennheiser CX True Wireless are quite similar in design to other Sennheiser true wireless earphones. These have the same square shape we’ve seen before, now with all-black matte touch panels instead of glossy ones with silver logos. The case is also almost identical to the previous buds.

The Sennheiser CX True Wireless are light and secure, but the lack of hooks or fins means you’ll need to find the right tip.

The earbuds are a bit bulky, but they’re light and secure, with four sizes of ear tips to make sure they fit your ears snugly. These don’t have any hooks or fins to fit securely in your ears, so finding the right tip is important.

The case is also a bit bulky, but it’s still compact. It’s made of plastic, but it doesn’t feel cheap, and the earcups fit nicely into their slots, held in place by magnets and pins.

Sennheiser CX True Wireless earphones next to a phone.

Sam Smart / Android Authority

The Sennheiser CX True Wireless are IPX4 rated, so they can handle sweat and splashes of water, making them safe for working out. Keep in mind that going for a run can cause them to loosen up a bit, so make sure they fit well and don’t move your head too much while wearing them.

The CX True Wireless connects via Bluetooth 5.2, which means that maybe one day they will be able to use the LC3 and LE Audio codec. For now, the CX True Wireless support SBC, AAC, and aptX codecs, so these earbuds are great whether you’re using an Apple or Android device.

See also: The best workout headphones.

How is the Sennheiser CX True Wireless controlled?

Sennheiser CX True Wireless earphones next to a phone, with the Sennheiser Smart Control app open on a phone.

Sam Smart / Android Authority

Since these earphones have capacitive touch panels, you can adjust the volume, answer calls, control playback, and access your voice assistant without using your phone. One touch pauses playback, two touches take you to the previous track from the left earphone and to the next track from the right. Three taps will activate your voice assistant, and a long press will decrease its volume from the left button or increase it from the right.

The Sennheiser Smart Control app gives you more control over the headphones, including swapping out any of the touch controls. It also allows you to adjust the equalizer of your headphones with a 3-band equalizer module or through presets. More importantly, you can also get firmware updates here. While there’s no Bluetooth multipoint, the Smart Control app will let you switch between recently paired devices seamlessly, but only one at a time.

How is the battery life?

Sennheiser CX True Wireless Headphones and Case, showing the charging port on the back of the case.

Sam Smart / Android Authority

Sennheiser claims that the CX True Wireless last up to nine hours on a single charge, but in SoundGuys’ tests, they did not come to that. With a constant output of 75 dB, the left earphone lasted eight hours and 31 minutes and the right only lasted five hours and 30 minutes.

It’s quite normal for one earbud to wear out faster than the other with true wireless earbuds, as one earbud is connected to both your phone and the other earbud, while one earbud is only connected to the other. Sennheiser says that it designed the earphones to switch between which earphones act as the primary connection point when taken out of the case each time to mitigate this unbalanced battery drain, so more regular use will mitigate this issue.

According to Sennheiser, the CX True Wireless case supports up to 18 hours of additional charging, and it lived up to the hype. The case charges via USB-C, but doesn’t feature fast or wireless charging options.

How well do they block noise?

Sennheiser CX TWS Isolation Box

Sam Smart / Android Authority

The Sennheiser CX True Wireless doesn’t have active noise cancellation (ANC), you’ll need the Sennheiser CX Plus True Wireless for that, but that doesn’t mean they’re poor attenuation. Once you have the right fit with the right ear tips, you’ll get solid insulation performance. Isolation rarely affects midrange and bass sounds from reaching your ears, but the CX True Wireless really does a decent job of reducing this noise. It’s not going to be like having real active noise cancellation, but the noises should seem considerably less annoying.

Verify: Best true wireless noise canceling headphones

How do the Sennheiser CX True Wireless sound?

Sennheiser CX True Wireless frequency response graph.

Sam Smart / Android Authority

The Sennheiser CX True Wireless frequency response (cyan line) follows the sound guys the target curve (pink line) fairly close in some of the higher ranges, but has a bit of an emphasis in the low and midrange. It sounds good, nothing is overly boosted, and nothing is noticeably distorted.

Most genres of music should sound good through these headphones, although the drop in the treble range can mean that cymbals and some strings, as well as the higher-pitched “buzz” sounds in some genres like EDM, can be a little more difficult to distinguish.

how is the microphone

Sennheiser CX True Wireless in use.

Sam Smart / Android Authority

The microphone on the Sennheiser CX True Wireless is pretty standard for a pair of true wireless earphones. It’s clear enough, although there are some muffled and digital compression sounds. It still does a decent job of reducing low-level ambient noise, but it’s definitely not great for recording voice. This is definitely a microphone for phone calls, and it’s fine for that purpose.

Sennheiser CX True Wireless Microphone Demo (Ideal):

Sennheiser CX True Wireless Microphone Demo (Street):

Sennheiser CX True Wireless review: The verdict

Sennheiser CX True Wireless case, open on a table with a headset in front of it.

Sam Smart / Android Authority

The Sennheiser CX True Wireless aren’t perfect, with high-end audio issues, battery life concerns, and a lack of features like wireless charging and ANC holding them back from being great. If you want the perfect thing for a specific use case, like working out, commuting, or taking calls, it’s not.

The Sennheiser CX True Wireless are affordable headphones that can do a bit of everything.

However, these headphones do things well enough that you can’t completely beat them. They sound good, have solid insulation performance, good application, and the IPX4 rating is excellent. If you’re looking for something that can do a bit of everything, these are worth considering.

Sennheiser CX true wireless headphones open case

Sennheiser CX True Wireless Headphones

These Sennheiser headphones offer premium features at a more reasonable price.

CX True Wireless earphones use Bluetooth 5.2 and support multiple Bluetooth codecs, so anyone can enjoy consistent, high-quality audio. These headphones look stylish and sound great.

What are the best Sennheiser CX True Wireless alternatives?

Sennheiser CX Plus TWS inside the box, outdoors.

Sam Smart / Android Authority

If you really like the idea of ‚Äč‚Äčthese headphones but would like them to have active noise cancellation, Sennheiser updated its CX line with the Sennheiser CX Plus True Wireless ($179), which has a similar design, Bluetooth 5.2, and an expanded high-end codec. support too.

If you’re looking for truly wireless earbuds that have great battery life, the Samsung Galaxy Buds Plus ($149) can handle nearly 12 hours of playback on a single charge, and they’re easy to find on sale. If you want something that falls between the Buds Plus and Buds Pro, the Samsung Galaxy Buds 2 ($149) might be worth considering.

Jaybird Vista 2 scale shot table case e1627056126609

Sam Smart / Android Authority

If you want a great pair of headphones for working out, the Jaybird Vista 2 ($149) have silicone ear hooks to keep the earbuds in place, as well as active noise cancellation. And if you’d rather be more aware of your surroundings, the Sony Linkbuds ($179) have a ring-shaped eartip design to keep outside noise from coming in as usual, though they don’t sound great.

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