---
product_id: 335992539
title: "CX True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls with Passive Noise Cancellation, Customizable Touch Controls, Bass Boost, IPX4 and 27-hour Battery Life, Black"
brand: "sennheiser"
price: "1014 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Sennheiser"
url: https://www.desertcart.ro/products/335992539-cx-true-wireless-earbuds-bluetooth-in-ear-headphones-for-music
store_origin: RO
region: Romania
---

# 7mm TrueResponse dynamic drivers IPX4 splash resistance 27-hour battery life CX True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls with Passive Noise Cancellation, Customizable Touch Controls, Bass Boost, IPX4 and 27-hour Battery Life, Black

**Brand:** sennheiser
**Price:** 1014 Lei
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game—because your ears deserve the best.

## Quick Answers

- **What is this?** CX True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls with Passive Noise Cancellation, Customizable Touch Controls, Bass Boost, IPX4 and 27-hour Battery Life, Black by sennheiser
- **How much does it cost?** 1014 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/335992539-cx-true-wireless-earbuds-bluetooth-in-ear-headphones-for-music)

## Best For

- sennheiser enthusiasts

## Why This Product

- Trusted sennheiser brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-day Power Play:** Up to 27 hours of uninterrupted music with fast on-the-go charging—never miss a beat during your busiest days.
- • **Custom Fit Comfort:** Ergonomic design with 4 ear tip sizes ensures a secure, fatigue-free fit and excellent passive noise cancellation.
- • **Smart Touch Control:** Personalize your listening with customizable touch controls and the intuitive Smart Control app for seamless device pairing.
- • **Precision German Audio:** Experience crystal-clear sound and deep bass from 7mm TrueResponse drivers, engineered for audiophile-grade clarity.
- • **Splash-Ready Durability:** IPX4 water resistance means your earbuds keep up with your active lifestyle—rain or shine, indoors or out.

## Overview

The Sennheiser CX True Wireless earbuds combine premium German-engineered 7mm dynamic drivers with a sleek ergonomic design, delivering up to 27 hours of playback with passive noise cancellation and customizable touch controls. Featuring IPX4 splash resistance and a Smart Control app, these earbuds offer a tailored, high-fidelity audio experience perfect for professionals on the move.

## Description

The CX True Wireless lets you enjoy superior crystal-clear sound, excellent battery life, and effortless ease of use for an outstanding everyday audio experience. Enjoy Sennheiser’s signature sound with our 7mm dynamic drivers for 9 hours of playback time, 18 hours battery life via on-the-go charging. Experience excellent passive noise cancellation provided by the secure fitting ergonomic design. Control on the go is effortless thanks to intuitive touch controls for audio, calls, and voice assistant access, while Bass Boost and the built-in EQ let you tailor the sound experience to your taste.

Review: Still loving my Sennheiser earbuds! - I love my Sennheiser earbuds. I love Sennheiser products, I started with their amazing microphones. I have been using my sennheiser earbuds for almost 3 years now and I never had any problems with it. The audio is clear, the music is crisp. It sits comfortably in my ears. I had several rubber attachments to choose from. It is very easy to use and to connect to any device. I still enjoy using it very much.
Review: Great for the price - I’ve been reluctant to go wireless, mostly because of sound quality issues of Bluetooth. But I really like the idea of being free from wires while at work, I already have phone/meeting headsets that are Bluetooth and love them. These went on sale Cyber Monday for a good price so I thought I’d try them. I found them a little bit of a pain to setup. The “Quick setup guide” was lacking information. Once I downloaded the full manual I figured out what I was missing and then got them setup and working with my phone. Sound is very clear and bass is excellent and not muddy. It does take a little tweaking of the EQ in the Smart Control app. Noise cancellation is very good considering its passive. These are generally comfortable but can cause a little fatigue if in for long periods. I’m in and out of meetings everyday so generally this is not a problem for me. I have found that I cannot position them the same in each ear. Everyone’s ears are different but unfortunately the only way to know is to try them. Battery life is good, though I stick them in the case when I leave my desk and the charge tops off on its own. Being Bluetooth, they do drain my phone a lot more than wired buds. I can’t comment on failed bub issues yet, it’s too early, so we’ll see. I didn’t intend for these to be used with phone calls but ended up taking a few calls while wearing them. I was surprised at how good the voice sounded. Warm and no distortion. The person I was talking to said it was pretty good. She had no trouble hearing me. A few complaints in the reviews I noticed of which have fairly simple solutions. 1) Lack of bass. Make sure you are using the correct size ear adaptor and that it is snug in your ear. This is critical. They have the medium on out of the box. They seemed fine, but after a couple of days I took a chance and tried the large. Wow, dramatically better. I also found you have to wiggle it just a little to get the maximum effect. Also download the Smart Control app to get a bit more bass from the EQ. I suggest trying the Sound Check component of the app. 2) For the units that are prematurely dying, I wonder if the contacts are dirty. The full manual specifies they do need to be cleaned from time to time. Also, they do have a 2 year warranty but you have to contact a Sennheiser partner. EDIT: I mentioned above that I got a little fatigued with them in for a while. After pulling out a couple of hunks of ear wax with the right ear bud, I decided to try some ear wax remover. Not only do the bud fit better, they are more comfortable. Something to think about if you are experiencing discomfort.

## Features

- Experience superior sound without compromise: Powered by German-made 7mm TrueResponse transducers with a wide range of Bluetooth codec support (AAC, aptX, SBC).Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears
- Product Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears
- Long battery life: Get up to 27 hours of music playtime with on the go charging with the high quality case that comes with the product
- Passive Noise Cancellation and light-weight ergonomic design: The ergonomic design offers optimal comfort and a secure fit with 4 ear adapter sizes for excellent passive noise cancellation
- Full digital control: Our Smart Control App for iOS / Android allows earbud functionalities to be personalized for your everyday needs and enables smooth pairing; fully adaptable controls for music, calls and voice assistant
- Bass Boost: Special EQ pre-set can be activated via our app for more intense bass. Sennheiser uses decades of expertise to drive the world of audio technology forward for new, unique sound experiences
- IPX4 splash resistance: Enjoy an outstanding audio experience no matter where you are

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08ZR5JB9G |
| Age Range (Description) | Adult |
| Audio Driver Size | 7 Millimeters |
| Audio Driver Type | Dynamic Driver |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Battery Life | 27 Hours |
| Best Sellers Rank | #66,069 in Electronics ( See Top 100 in Electronics ) #3,233 in Earbud & In-Ear Headphones |
| Bluetooth Range | 10 Meters |
| Bluetooth Version | 5.0 |
| Cable Feature | Without Cable |
| Carrying Case Color | Black |
| Carrying Case Material | Plastic |
| Charging Time | 1.5 Hour |
| Compatible Devices | Cellphones, Computers, Tablets, Gaming Consoles |
| Connectivity Technology | Wireless |
| Control Method | Touch, Voice |
| Control Type | Touch Control |
| Controller Type | Voice Control |
| Customer Reviews | 3.8 3.8 out of 5 stars (2,767) |
| Date First Available | June 29, 2021 |
| Earpiece Shape | Rounded tip |
| Generation | Generation 1 |
| Headphones Jack | No Jack |
| Included Components | What's in the box: Sennheiser CX True Wireless In-Ear Earbuds (Black), Charging |
| Input Device Interface | Bluetooth |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.76 ounces |
| Item model number | CX200TW1 BLACK |
| Manufacturer | Sennheiser |
| Material | Plastic |
| Model Name | CX True Wireless |
| Noise Control | Passive Noise Cancellation |
| Noise Control Features | passive_noise_cancellation |
| Number of Items | 4 |
| Product Dimensions | 2.3 x 1.3 x 1.6 inches |
| Recommended Uses For Product | Listen to music, during sports |
| Sensitivity | 110 dB |
| Special Feature | Lightweight, Water Resistant |
| Specific Uses For Product | Music |
| Style | True wireless earphone |
| Supports Bluetooth Technology | Yes |
| UPC | 615104355040 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
| Wireless Communication Technology | Bluetooth, True Wireless |

## Product Details

- **Brand:** Sennheiser
- **Color:** Black
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 36 Ohms

## Images

![CX True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls with Passive Noise Cancellation, Customizable Touch Controls, Bass Boost, IPX4 and 27-hour Battery Life, Black - Image 1](https://m.media-amazon.com/images/I/618X4dlZbfL.jpg)

## Questions & Answers

**Q: Are there better that the 400bt true wireless ?**
A: With Sennheiser sound is the #1 consideration and both the CX True Wireless and CX 400BT True Wireless provide amazing sound quality so either is an excellent choice for sound.

The CX True Wireless does offer a few additional features:
1) Bass Boost ... so you can get your music really pumped up.
2) Role Switching ... so you can use one ear bud at a time or both together.
3) Adjustable Sidetone ... so you can hear your own voice during calls.
4) Smaller ergonomic design ... so you can get a more snug fit in the ear for great passive noise cancelling.
5) 27 hour battery life ... so you can have your music all day.

Have a great day.

**Q: On the underside of the earbud there is a small piece of material over the charging contacts. What is this for and should I remove it?**
A: On the underside of the earbuds there is a protective covering over the charging contact points to prevent the earbuds from powering on before they are ready to be used. You need to remove this protective covering prior to charging otherwise the earbuds won't be able to power on.

Have a great day.

**Q: Can you use just the left earbud by itself?**
A: YES!!! The earbuds feature "role switching" which lets you use each earbud separately or together as a pair.

The added benefits to using only one earbud at a time is that you can hear what's going on around you (ie: if you are walking do the street) and one ear bud can be charging so your music is always ready to go.

Have a great day.

**Q: Does this have a qualcomm chip? if so, which series chip? qcc5100 or 30xx or other?**
A: Qualcomm Apt X

## Customer Reviews

### ⭐⭐⭐⭐⭐ Still loving my Sennheiser earbuds!
*by M***M on January 11, 2026*

I love my Sennheiser earbuds. I love Sennheiser products, I started with their amazing microphones. I have been using my sennheiser earbuds for almost 3 years now and I never had any problems with it. The audio is clear, the music is crisp. It sits comfortably in my ears. I had several rubber attachments to choose from. It is very easy to use and to connect to any device. I still enjoy using it very much.

### ⭐⭐⭐⭐⭐ Great for the price
*by D***N on December 2, 2022*

I’ve been reluctant to go wireless, mostly because of sound quality issues of Bluetooth. But I really like the idea of being free from wires while at work, I already have phone/meeting headsets that are Bluetooth and love them. These went on sale Cyber Monday for a good price so I thought I’d try them. I found them a little bit of a pain to setup. The “Quick setup guide” was lacking information. Once I downloaded the full manual I figured out what I was missing and then got them setup and working with my phone. Sound is very clear and bass is excellent and not muddy. It does take a little tweaking of the EQ in the Smart Control app. Noise cancellation is very good considering its passive. These are generally comfortable but can cause a little fatigue if in for long periods. I’m in and out of meetings everyday so generally this is not a problem for me. I have found that I cannot position them the same in each ear. Everyone’s ears are different but unfortunately the only way to know is to try them. Battery life is good, though I stick them in the case when I leave my desk and the charge tops off on its own. Being Bluetooth, they do drain my phone a lot more than wired buds. I can’t comment on failed bub issues yet, it’s too early, so we’ll see. I didn’t intend for these to be used with phone calls but ended up taking a few calls while wearing them. I was surprised at how good the voice sounded. Warm and no distortion. The person I was talking to said it was pretty good. She had no trouble hearing me. A few complaints in the reviews I noticed of which have fairly simple solutions. 1) Lack of bass. Make sure you are using the correct size ear adaptor and that it is snug in your ear. This is critical. They have the medium on out of the box. They seemed fine, but after a couple of days I took a chance and tried the large. Wow, dramatically better. I also found you have to wiggle it just a little to get the maximum effect. Also download the Smart Control app to get a bit more bass from the EQ. I suggest trying the Sound Check component of the app. 2) For the units that are prematurely dying, I wonder if the contacts are dirty. The full manual specifies they do need to be cleaned from time to time. Also, they do have a 2 year warranty but you have to contact a Sennheiser partner. EDIT: I mentioned above that I got a little fatigued with them in for a while. After pulling out a couple of hunks of ear wax with the right ear bud, I decided to try some ear wax remover. Not only do the bud fit better, they are more comfortable. Something to think about if you are experiencing discomfort.

### ⭐⭐⭐⭐ Solid choice for ear buds
*by C***S on December 22, 2023*

I've used these ear buds for almost 2 years and strongly considered re-buying them once I started facing issues. When it comes to sound quality, they're good, and the latency is small, but you'll notice it's there. The best part of these ear buds has to be the battery life; these things last all day, and can be fully charged back up twice with the case. Though if you're looking for something with strong noise cancellation, you might want to consider looking for a different pair of ear buds, as these are really only capable of blocking out most speech. Overall, they're a pretty good pair of ear buds, but I do have a few problems with them. First, when they get to low battery, the text to speech voice will say "Recharge headset" just frequently enough to become mildly vexing. This is my primary complaint about these ear buds. Now mind you, I haven't treated these ear buds very well, they went through constant abuse and were used in sub-optimal environments the entire time I've owned them. The next two complaints are likely a result of my poor treatment of these. Second, after about two years of use, their connectivity isn't as great anymore; the range in which I can use these has dropped considerably. I used to be able to walk in my backyard without issues, but now I can barely leave the room without the connection dropping constantly. Lastly, the left earbud has recently developed a problem with connecting to the case; it seems the leads just don't connect half the time. This occasionally causes small inconveniences with the left ear bud turning on in the case and randomly hijacking the audio output of my pc, or it just doesn't end up charging and I'm stuck with a single ear bud until I manage to get it to charge again. Overall, this is a pretty good product. I'd recommend it to anyone who needs a pair of long-lasting wireless earbuds and doesn't need the best sound quality or noise cancellation.

## Frequently Bought Together

- Sennheiser Consumer Audio CX True Wireless Earbuds - Bluetooth In-Ear Headphones with Passive Noise Cancellation, Customizable Touch Controls, Bass Boost, IPX4 and 27-hour Battery Life, Black
- RLSOCO Carrying Case for SENNHEISER CX Plus/CX True Wireless/CX 400BT True Wireless Earbuds
- LEFXMOPHY Case Cover Replacement for Sennheiser CX/CX 400BT True Wireless Earbuds, Silicone Protective Sleeve Skin (Black)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-22*