Review: Sennheiser CX Plus True Wireless

Almost perfect from Sennheiser

Sennheiser has taken a pair of good earbuds and made them better with noise reduction.

Sennheiser CX Plus True Wireless
Published 2021-12-27 - 8:00 am
Our opinion
Excellent sound quality and excellent noise reduction. Sidetone allows you to hear yourself during conversations.
Not the closest fit.
  • Type: Fully wireless earbuds
  • Bluetooth: 5.2
  • Active Noise Reduction (ANC): Yes
  • Resistance: IPX4
  • Codecs: AAC, aptX, SBC
  • Battery life: 8 hours + 16 hours from case (w. ANC)
  • Weight: 12 g + 35 g case
  • Charging: USB-C
  • Web:

Sennheiser is in the process of renewing their wireless earbuds. Not long ago we had a pretty nice encounter with CX True Wireless, which had good sound – albeit a little cautious. But which lacked active noise reduction and ambient sound, which placed the earbuds a bit behind the competition. And so we recommended instead to go for the more expensive Momentum True Wireless 2, which has everything the CX True Wireless lacks.

But now the CX Plus True Wireless is here. In short, the CX is with active noise reduction and ambient sound.

Sennheiser CX Plus True Wireless man
(Photo: Sennheiser)

The fit is still a little odd. The silicone tips keeps sliding out of my ears and must be pressed back in at regular intervals. A pair of Comply tips in memory foam solves the problem and I would highly recommend buying some of these as a supplement.

Other than that, there is not much to put off on the functionality; you can even select Side Tone in the app so you can hear your own voice in the earbuds. The only thing I would like was that it was a better equalizer, because here you can only set the bass, midrange and treble.

Sennheiser CX PLUS TW Black lifestyle
(Photo: Sennheiser)

The sound of the Sennheiser CX Plus True Wireless

The music through CX Plus True Wireless is as good as with the simpler non-Plus version. That is, a silky soft and fine treble and a really good and well-balanced bass, which makes it a pleasure to listen to music.

My only complaint is that the midrange could well be more prominent. But it can be fixed by pulling the midrange 3 dB up in the slightly too primitive EQ. If you do not want to adjust the sound yourself, however, there are still few who sound better right out of the box than these.

(Photo: Sennheiser)

I mentioned about the Sennheiser CX that the maximum sound level was a bit low. It’s the same here, but it’s not really a big deal. You can play more than loud enough with pop music; but with classical music tou have to live with the fact that extra power is needed.

The advantage of the Plus version is that the active noise reduction means that you hear more of the quieter parts of the music, so you do not have to play as loud.

Sennheiser CX Plus True Wireless lady
(Photo: Sennheiser)

Also in this test

Technics EAH-AZ60

Fabulous Technics

Technics demonstrates tremendous confidence with the EAH-AZ60.

Really good sound and noise reduction. Also supports the excellent LDAC codec for even better sound.
The sound should be adjusted in the app.

LG Tone Free FP8W

LG surprises positively

With the Tone Free FP8W, LG proves that they should be taken seriously when it comes to sound.

Good and user-friendly app, okay noise reduction and the possibility of acheiving really good sound on music.
The noise reduction has digital artifacts in the noise floor. The fit is not as tight as with certain others. Mediocre call quality.

Jabra Elite 7 Pro

Advanced and good

The Jabra Elite 7 Pro are great with many neat features in an advanced app.

Advanced, yet simple setup in the app. Here you get both a hearing test and the option to set the optimal noise reduction. The sound is also good.
We would like some more airyness at the top.

Belkin SoundForm Freedom

You should expect more

Belkin SoundForm Freedom is kind of okay, but costs too much.

Long battery life, stable connection and okay voice quality. iPhone users can find missing earbuds with the Find app.
The sound is mediocre, and without noise reduction or app, there is not much to justify the price.


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