Sennheiser CX true wireless Review

Sennheiser CX True Wireless Review – Short words

Sennheiser CX True Wireless review: You are considering versatile wireless earbuds that come at a decent price. Although the CX True Wireless is not the most excellent and is not resistant to soaking of water (IPX4 rating is just splash resistant only). However; they offer great audio performance, strong connectivity, and pleasant battery life. The last answer is these wireless earbuds are also well worth checking out.

Sennheiser CX true wireless review

Sennheiser CX True Wireless Earbuds

Light-weight & ergonomic design, extra Bass boost, special EQ preset, great sound quality, 9 + 18 hours of playtime, ipx4 rated splash resistant


Sennheiser had released CX 400BT and the most successful and most popular wireless earbuds in the market. Many people expect the new latest Sennheiser earbuds, and it is time for the Sennheiser CX true wireless earbuds revealed and released on the market. How well are the design, features, and sound quality of the Sennheiser CX true wireless? Let’s talk about it in Sennheiser CX true wireless review.

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Sennheiser CX true wireless Review – The Design

Sennheiser CX true wireless review

The Sennheiser True Wireless CX design is very similar to the previous model. It has a functional look that will appeal primarily to minimalists, but it may not appeal as much to people who like their earbuds making a statement.

The Sennheiser logo is engraved on the large square housings of the earbuds, which are available in white or matte black. The box contains a variety of ear tips, so it’s easy to find the right fit.

Our ears are smaller than average, so the housings were extremely uncomfortable for us. Although this won’t be the case for everyone, it is something to keep in mind if you have small ears.

Although the CX True Wireless charging bag hasn’t been changed significantly from the previous model, it is still bulky and can be difficult to fit into a pocket. The charging case can be charged via USB-C, but there is no wireless charging. However, we don’t expect it to cost this much.

An LED light is located on the exterior of the charging box that shows the remaining battery life. It will light up in different colors depending on how much charge is left.

Each earbud’s housing is touch-sensitive. You can control music playback, reject, accept/end calls and summon the voice assistant using a series of tap combinations. The touch controls were intuitive and easy to use. The ability to hold the volume up or down on the left and right earbuds was a great feature that we appreciate, something you won’t get with wireless earbuds.

A recent firmware update allows you to customize the touch controls via Sennheiser Smart Control App. This is a useful feature that gives these buds a personal touch.

Sennheiser CX Wireless Earbuds Review – The Control

The CX’s touch controls work flawlessly. Sennheiser is one of a few companies that truly understand touch controls. It is easy to tap consistently and accurately with the large control surfaces. A subtle tone can be used to confirm you have tapped correctly.

The Sennheiser Smart Control app allows you to customize these controls. You can assign single-, double- and triple taps to your desired function. Additionally, you can choose a different function for each earbud, which is useful if you plan on using them independently (which you can do for music and calls). All the functions you require are available: play/pause, skip forward/back, and trigger your voice assistant. A long-tap gesture can only change the volume.

How about the CX True Wireless Earbuds’ sound quality?

CX true wireless review

Sennheiser’s TrueResponse transmitter is found in each earbud. The company claims that it will allow the units to produce “deep basses and natural mids” and a clear, detailed treble.

The CX True Wireless earbuds have proven to be capable of fulfilling those claims based on our experience with them. We were struck by the richness and power of Al Green’s “Let’s Stay Together” track.

The vocals sound amazing, with great detail from the harmony of the backing singers. Overall, the soundstage is impressively large, with good separation between different frequencies and good clarity.

Scully and Mulder from Catatonia sound great with their overdriven guitars. The bass lines are strong and have a high level of control. The bass can be a little overwhelming on tracks like The Cardigans’ My Favourite Games. Some may prefer the CX400BT’s more neutral soundstage. The latest Sennheiser buds are a pleasant listening experience that will keep your toes tapping.

If the sound doesn’t suit your taste, you can adjust the EQ settings via the Sennheiser Smart Control app. You can adjust the EQ settings using the Sennheiser Smart Controller app. This allows you to adjust the frequency sliders manually or choose from a range of presets.

The Bass

CX True Wireless - Bluetooth in-ear headphones for music

There is the flat response in bass notes is a sound that will reproduce most of your music below mid-C. This means that there won’t be any basslines drowning out the rest or random notes surprising you by their relative volume. This type of sound is appreciated by many, even if it’s not the same as what they’re used to. It means that basslines won’t ruin your listening experience. It can be difficult to find bass instruments in older songs that aren’t at the song’s heart. Barry White’s song “You’re the last, the most important, my everything” has a bass that sounds a little quieter due to Barry’s low voice. However, it shouldn’t be too noticeable if you are using older mixes.

Highs and Mids

The bass response is very flat. However, the highs and mids have a much higher level of emphasis. This little boost in emphasis helps vocals and low strings be easily identified and their harmonics to be heard more clearly. This can be heard in songs such as Baby I’m yours by Breakout. Sometimes, poor headphones or earbuds can make it difficult to pick out the correct consonants in lyrics.

The drop in emphasis between 3-6 kHz and some high harmonics can make it difficult to hear, affecting cymbal shimmer. These sounds can be annoying when you use other headphones. The CX400BT offers some relief.

Sennheiser CX True Wireless Earbuds Review – Battery Life

Sennheiser CX true wireless earbuds offers great battery life

Comparable to the CX 400BT, the Sennheiser buds provide a better battery life with 9 hours of earbuds and 18 hours in the case. This is an increase of 7 hours.

However, it is not class-leading – other wireless earbuds offer over 40 hours of playback – and it’s a shame the case doesn’t have more charges considering its size.

The Connectivity

Bluetooth 5.2 compatibility has been improved, along with support for AAC, SBC, and aptX codecs. As such, streaming high-res audio tracks should not be a problem. We had no trouble pairing the earbuds to our phone and didn’t experience any dropouts while testing.

Each earbud can be used independently, and dual microphones within each bud should provide clear calls. Sidetone, an audio feature that makes it easier to hear your voice over the phone, has also been introduced. The app has a slider that allows you to adjust the volume of your voice.

Quality Calling

CX True Wireless can be called at a rate of about 15% for truly wireless headphones. If the external conditions are calm and there’s no wind, your voice will be clear with little compression and wobble. Sennheiser describes this “speech optimized” sound in their description of the earbuds.

Compare Sennheiser True Wireless to Other Wireless Earbuds

Sennheiser CX True Wireless Vs Sennheiser CX 400BT Vs Sennheiser Momentum True Wireless Vs Tozo Gloden X1 Vs Jabra Elite 85t

Sennheiser CX true wireless review

Sennheiser CX True Wireless

Specs: in-ear, dimension: 2.3″ x 1.3″ x 1.6″, weight: 49g (both earbuds + case)/37g (case)/6g (single earbud), speaker type: TrueResponse transducer 7mm dynamic driver, charging type: USB type C, frequency response: 5 – 21kHz (headphones/ 100 –  10kHz (microphone, microphone: 2 mic beamforming arrays (total 4 mics), battery: Lithium-ion rechargeable (400mAh – charging case)/60mAh (earbud)
Features: customizable touch control, extra bass boost, splash-resistant: IPX4, passive noise cancellation, TrueResponse transducer, playtime: 9H (single charge)+ 18H (with case), Bluetooth 5.2 class 1 BLE, code: SBC/AAC/aptX™ support profile: A2DP/AVRCP/HFP
What’s in the box: CX True wireless earbuds, charging case, USB-C cable, Silicone ear adapter sets (XS/S/M/L), user manual & safety guide


Sennheiser CX 400BT True Wireless Earbuds Review

Sennheiser CX 400BT True Wireless

Specs: in-ear, dimension: 2.32″ x 1.33″ x 1.67″, weight: 0.42 ounces, driver: dynamic 7mm driver, total harmonic distortion: <0.08% (1kHz / 94dB), Bluetooth 5.1, codec support: AAC/aptX/SBC, app: Smart Control app
Features: true wireless, battery life: 7 hours (single charge)/20 hours (with charging case), customizable touch control, ergonomic design, OS compatible: iOS/Andriod, voice assistant, automatic on/off
In the box: CX 400BT True Wireless, charging case, silicone ear adapter sets (in size XS/S/M/L), USB-C charging cable


Sennheiser Momentum true wireless 2

Sennheiser Momentum True Wireless 2

Specs: in-ear, dimension: 6.69″ x 4.53″ x 1.77″, weight: 12g(2 earbuds)/48g (charge case), Bluetooth 5.1, Bluetooth profile: A2DP/AVRCP/HSP/ HFP, support code: SBC/AAC/aptX™, charging type: USB-C, full charge time: 1.5 hours, frequency response: 5 – 21kHz, THD: <0,08% (1kHz / 94dB)
Features: true wireless, active noise-canceling, ergonomic & lightweight design, sound: natural mids/clear & detailed treble/deep bass, playtime: 7 hours (earbuds)/28 hours (with charging case), customizable touch-control, voice assistant: Google assistant/Siri/Alexa, splash-resistant: IPX4, aptX, quick charge: 15 minutes get 1.5 hours, app: Sennheiser Smart Control app for iOS™ and Android™, warranty: 2 years


Tozo Golden X1 - Specs & Features

Tozo Gloden X1 – LDAC & Hi-Res Audio True Wireless Earbuds

Specs: in-ear, dimension: 2.76″ x 1.97″ x 1.97″, weight: 6.7 ounces, driver diameter: 12mm dynamic speaker with polymer composite film materials, frequency response: 12Hz to 44.1kHz, battery capacity: 500mAh
Features: true wireless earbuds, hi-res audio, LDAC HD audio-decoding, playtime: 8 hours (single charge)/32 hours (with charging case), active noise-canceling: 3 layers hybrid ANC, waterproof rating: IPX6, dual digital LED power display, snug & comfortable fit design,
In the box: Performer Raycon earbuds, small charging case, 5 ear tips (different sizes),  USB-C charging cable, user manual


Jabra Elite 85t review

Jabra Elite 85t

Specs: fit-type: in-ear, seme-open design, dimension: 5.59″ x 4.37″ x 1.61″, weight: 6.5 ounces, speaker size: 12mm, charge time: 15 minutes get 1 hour,
Features: true wireless earbuds, Bluetooth 5.1, active noise-canceling: fully adjustable level of noise cancellation, HearThrouge: yes and adjustable, playtime (ANC on): 5.5 hours (earbuds)/25 hours (with charge case), 6-mic technology, crystal clear call, music equalizer: Jabra Sound+ app, voice assistant, Dust & Rain Resistant: IPX4, 3 sets of silicon Ear Gels


Sennheiser CX True Wireless Review – Pros & Cons


  • Rich, bass-forward sound with the high-recurrence definition
  • Certain EQ
  • Waterproof build
  • Good battery life


  • Adjust in the canal can change the sound signature
  • EQ could offer more precise control
  • EQ could offer more exact control

Sennheiser CX True Wireless Review – Final Verdict

Sennheiser’s CX true wireless earbuds are among the most affordable. This is due to their newfound water resistance and greatly improved battery life. The CX is a better option than the entry-level AirPods and its secure fit could make it one of the most popular sports headphones. The Beats Studio Buds are a good alternative if you don’t want ANC. But everyone else has a great deal. It was a pleasant surprise. After the Sennheiser CX True Wireless review, I hope you can make a decision how about these wireless earbuds from Sennheiser and should buy them or not.

Where to buy Sennheiser CX True Wireless Earbuds

Sennheiser CX true wireless earbuds offers great battery life
Sennheiser CX True Wireless:
Light-weight & ergonomic design, extra Bass boost, special EQ preset
great sound quality, 9 + 18 hours of playtime, ipx4 rated splash resistant


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