Sennheiser CX True Wireless review: Jack of all buds

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Sennheiser CX True Wireless

The Sennheiser CX True Wireless are a pair of versatile and reasonably priced true wireless headphones. They don’t excel in any area, but they reliably tick most of the boxes you’d want in a pair of low to mid buds.

Sennheiser has been in the true wireless earphone space for some time, and with the Sennheiser CX True Wireless, they’re aiming to make headphones at a more affordable price. This pair of headphones lacks active noise cancellation, but otherwise offers features in line with Sennheiser’s more expensive models. Is the CX True Wireless the next great value contender?

This Sennheiser CX True Wireless review comes from the audio experts of our partner site SoundGuys. To verify their in-depth view of the Sennheiser CX True Wireless.

Who are the Sennheiser CX True Wireless intended for?

  • Nobody looking for a new pair of headphones that can last all day and won’t break the bank.
  • Athletes you’re looking for something sweatproof but don’t care about noise cancellation.

What do the Sennheiser CX True Wireless look like?

Sennheiser CX True Wireless headphones 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 headphones. 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 lightweight and secure, but the lack of hooks or fins means you’ll have to find the right tip.

The headphones are a bit bulky, but they’re lightweight and secure, with four sizes of tips provided to ensure they fit your ears well. These don’t have a hook or fin to fit securely in your ears, so finding the right tip is important.

The case is a bit bulky too, but still compact. It’s made of plastic but doesn’t feel cheap, and the earbuds fit snugly into their slots, held in place with magnets and pegs.

Sennheiser CX True Wireless headphones 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. Be warned that going for a run can shake them up a bit, so make sure you have a good fit and don’t move your head too much when wearing them.

The CX True Wireless connects via Bluetooth 5.2, which may mean that one day they will be able to use the LC3 audio codec and LE Audio. For now, the CX True Wireless supports SBC, AAC and aptX codecs. These headphones are therefore perfect whether you use an Apple or Android device.

See also: The best workout headphones

How to control the Sennheiser CX True Wireless?

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

Sam Smart / Android Authority

Since these headphones have capacitive touchscreens, you can adjust volume, answer calls, control playback, and access your voice assistant without using your phone. Tapping once pauses playback, two taps take you to the previous track from the left earbud and the next track from the right. Three taps will activate your voice assistant, and the hold will decrease your volume from the left earbud or increase it from the right.

The Sennheiser Smart Control app gives you more control over the headphones, including swapping out one of the touch controls. It also allows you to adjust the equalizer of your headphones either with a three-band equalizer module or via preset options. 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.

What is the battery life?

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

Sam Smart / Android Authority

Sennheiser claims the CX True Wireless lasts up to nine hours on a single charge, but in SoundGuys’ tests, they failed. At a constant 75dB output, the left earbud lasted eight hours and 31 minutes and the right one lasted just five hours and 30 minutes.

It’s quite normal for one earbud to drain faster than the other with true wireless earbuds, because one earbud is connected to both your phone and the other earbud, while one earbud is just connected to the other. Sennheiser says it’s designed the earbuds to switch between earbuds that function as the primary connection point when removed from the case each time to alleviate this imbalanced battery drain, so more regular use will alleviate this issue.

According to Sennheiser, the CX True Wireless can hold up to 18 hours of extra charges, and it lived up to that. The case charges with USB-C, but offers no fast charging or wireless charging options.

How well do they block noise?

Sennheiser CX TWS Isolation Board

Sam Smart / Android Authority

The Sennheiser CX True Wireless don’t have active noise cancellation (ANC) – you’ll need the Sennheiser CX Plus True Wireless for that – but that doesn’t mean they have bad attenuation. Once you have the right fit with the right ear tips, you get solid isolation performance. Isolation rarely prevents mid-range and low-end sounds from reaching your ears, but the CX True Wireless actually does a decent job of reducing that noise. It won’t be like having true active noise cancellation, but noises should seem considerably less distracting.

To verify: The best true wireless noise-canceling headphones

How does the Sennheiser CX True Wireless sound?

Sennheiser CX True Wireless frequency response chart.

Sam Smart / Android Authority

The Sennheiser CX True Wireless frequency response (cyan line) follows the SoundGuys target curve (pink line) quite close in some of the upper ranges, but puts a little emphasis on the bass and mids. It sounds good, nothing is over-amplified, and it doesn’t cause any noticeable distortion.

Most genres of music should sound fine through these headphones, although the drop in treble range could mean cymbals and some strings, as well as higher pitched “buzzing” sounds in some genres like EDM could be a little more difficult to choose.

How’s the mic?

Sennheiser CX True Wireless worn.

Sam Smart / Android Authority

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

Sennheiser CX True Wireless (Ideal) Microphone Demo:

Sennheiser CX True Wireless Microphone Demo (Street):

Sennheiser CX True Wireless review: the verdict

Sennheiser CX True Wireless case, open on a table with an earpiece in front.

Sam Smart / Android Authority

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

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

However, these headphones do enough things well enough that you can’t totally knock them out. They sound great, have strong isolation performance, good application, and that IPX4 rating is excellent. If you’re looking for something that can do a bit of everything, this might be worth considering.

Open Case for Sennheiser CX True Wireless Headphones

Sennheiser CX True Wireless Headphones

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

The CX True Wireless headphones use Bluetooth 5.2 and support multiple Bluetooth codecs, so everyone can enjoy consistent, high-quality sound. These headphones are stylish and sound great.

What are the best Sennheiser CX True Wireless alternatives?

Sennheiser CX Plus TWS inside the case, outside.

Sam Smart / Android Authority

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

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

Jaybird Vista 2 Scaled Firing Table e1627056126609

Sam Smart / Android Authority

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

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