Listening to music makes your walks more comfortable, and you can perform your office work more perfectly. During busy days, relax your mind with lovable melodies while wearing Sennheiser CX 400BT Wireless Earbuds. They produce sound with excellent quality and give a soothing experience to your listening. Because of their leading audio technology, you can hear real sound with powerful bass, which leads them towards excellence.
Extended battery life with continuous 7 hours of playtime makes these earbuds ideal for longer journeys. The charging case adds 13 hours of playback, adding a huge power backup for the earbuds. The fantastic design of the earplugs ensures high comfort of ears while enjoying your favorite soundtracks for a prolonged period. Moreover, with simple taps, you can control all the options (play the next song, play the previous track, or play-pause the current song).
CX 400BT uses built-in microphones to ensure the best call quality while talking to loved ones or having business meetings. Passive noise cancellation minimizes surrounding noise, allowing you to focus on the internal sound. The person on the other side will also hear your noise-free sound, resulting in a more convenient conversation. You can check Sennheiser CX Plus with their IPX4 water-resistant ratings, as the CX 400BT has no waterproof ratings.
Connectivity with your device becomes more feasible with the latest Bluetooth 5.1 technology. Codecs like SBC, AAC, and aptX make the audio quality pure and perfect for listening to songs with extra bass.
Earbuds Review
Overview of Sennheiser CX 400BT
Before going through the detailed features of the product, let’s keep an eye on the overview.
- These include deep bass, crisp mids, and treble to make the CX 400BT True Wireless sound soothing and thrilling, designed to deliver high-fidelity sound to the user’s ears
- Those users who want to make calls or listen to music while playing games in the playground, so they have available custom touch controls, which make the integrated lifestyle of its users more enjoyable and convenient
- They provide fast access to the touch-sensitive Siri and Google Assistant; they also give you intuitive controls for music and calls
- The Sennheiser CX 400BT includes the ability to connect to both Android and iOS devices. This gives you Bluetooth 5.1 technology as well as provides excellent codecs, SBC, AAC, and aptX, due to which your mobile devices become capable of producing premium sound
- These earbuds support the users with up to 20 hours of battery life, which you get from their earbuds 7 hours, while you can get up to 13 hours of additional life from the charging case
- The earbuds and the charging case are designed to be small, sleek, and compact, ensuring you get the best sound experience wherever you go
- They are designed in white and black color variations to enhance user preferences, allowing you to enjoy long playlists, lively audiobooks, and loving phone calls
- They also support the Smart Control app capability to personalize the listening experience, which provides a built-in equalizer to produce stunning sound quality
Features of Sennheiser CX 400BT True Wireless Earbuds
It would help if you read the section below for a detailed product overview. We tried to explain all the features of the Sennheiser CX 400BT one by one.
| Brand | Sennheiser |
| Model | CX 400BT True Wireless |
| Playtime | 7 Hours |
| Playtime with Case | 13 Hours |
| Connectivity Range | 30 Feet |
| Bluetooth Technology | 5.1 |
| Water Resistance | No IP Ratings |
| Active Noise Cancellation | No |
| Audio Codecs | SBC, AAC, aptX |
Box Packaging
The Sennheiser CX 400BT Wireless comes in a blue and white cardboard box with a printed earbuds photo. The package included the earplugs R for the right ear and L for the left ear and silicon ear adapter sets (XS, S, M, L). You can also find a charging case with a built-in rechargeable battery for the buds. It contains a USB charging cable with a USB-C and USB-A connector, approximately 0.25 m.
The manufacturer also provides a Safety Guide and Quick Guide books for convenience. Moreover, by reading the instructional manual, you can find essential safety instructions to prevent accidents and damage to health. You must only use rechargeable batteries and chargers provided and recommended by Sennheiser for durability.
Design
The earpieces follow the large bud design; instead, they are shaped into a circular outer touch panel. It’s matte on the buds’ border, but the touch panel has a shiny material that accepts fingerprints. You can remove them simply by wiping them or any cloth piece, including your shirt or pint. No ear stabilizers exist; depending on your ear cartilage, you can only hold them in your ears with the correct tip size. You must insert and twist them a little to ensure they fit comfortably.
Sweat resistance or IP rating is absent, so avoiding wearing it while performing workouts is advised. However, wearing them for several hours is comfortable without any issues. People with small ears can wear them for three consecutive hours, but they may become painful afterward. Sennheiser CX 400BT always retains its signature sound profile, but its noise-cancellation capability is superior to Momentum 3. These buds are light in weight, without any issue, and keep a comfortable, secure fit in your ears for an extended period.
The charging case is made with sturdy plastic to resist scratches, which is big according to size. This case also provides the user with an additional charging facility of up to 13 hours. The buds fit easily into the case, and they stay charged until you remove them from the case. A USB-C port has been added on the back side of the case. It also includes an LED light, which helps to check the battery level. They do not include a wireless charger capability to charge the case further, so you can’t use the Qi pad to fill them quickly.
Price
At the time of launch, the $200 price of the Earbuds was quite reasonable on their quality standards, while right now, you can get them from the Amazon platform for $114.99. Undoubtedly, they also feature premium materials, evidenced by high-quality plastics. This feature makes their excellent sound quality even more impressive.
Controls
The Sennheiser CX 400BT features touch control capabilities instead of physical buttons; both Sennheiser wireless earbuds feature intuitive and responsive touch controls like in 1More Evo earbuds.
However, the truth is that many premium earbuds are working to eradicate this trait. The commands that control the various functions of the CX 400BT are described below. In which tap once to accept/end the call While double tap to reject the call. Tap the left button once to play or pause the music. They also include a comprehensive list of modern controls. But this is usually optional, which makes it very, very easy enough to remember the basics.
Connectivity
The Sennheiser CX 400T includes Bluetooth 5.1 technology supporting Aptx codecs, SBC, and AAC features. These codecs developed by Qualcomm are fully permitted to compress or transmit music with less damage to the source profile. Moreover, the Bluetooth connection of these earbuds is rock solid, which allows them to build up a strong relationship with a device for a long time without any fraud.
It also provides you with a wireless range of up to 30 feet. Moreover, whenever you pair them with any of your Bluetooth devices, they will take a hiccup while connecting. But after that, whenever you leave them for connection, it will immediately get connected automatically without any problem. They also include all standard headset and playback profiles, including A2DP, HSP, and HFP.
Sound Quality
Users say about the Sennheiser company, that the sound quality of this company is much better than the previous generations. The CX-400BT and CX true wireless are remarkably similar due to significant improvements in sound quality. However, the CX-400BT hits the bass note with more depth and weight. Both models feature 7mm drivers, the most important benefit of including only high-performance drivers in these earphones, which Sennheiser says produces very little noise during testing. The CX 400BT features a remarkably neutral EQ.
With the help of this, you can take advantage of memorable music, including pop, dance tracks, and electric songs. These earbuds provide the best sounding and mixing features for live recording and classical music. The earpieces give little importance to notes below the 100 bass, which may frustrate some users. To resolve the issue, use the Sennheiser App, which makes it perfectly adjustable. Canceling out the surrounding noise can be a pain whenever you’re on the move. However, throughout the whole process, the sound quality looks perfect.
Call Quality
Getting a phone call experience from the CX 400BT earbuds can feel technically brilliant because the built-in microphones pick up the sound. Due to this, you can hear and understand the person clearly whenever you call them. The person on the other side can also listen to the voice better, making the conversation perfect and clear. One may buy the TAGRY X08 wireless earphones for impressive audio quality because of their 13mm speakers and triple-layer composite diaphragms.
Battery Life
Sennheiser claims that users can get up to 7 hours of playback time individually after fully charging these earbuds. While experimentally speaking, these earbuds provide up to 5 hours and 17 minutes of non-stop playback before going into the case. In comparison, the AirPods 2nd-gen gives you up to 4 hours and 49 minutes of playtime, which is 1 hour less than the Sennheiser.
There is almost a fundamental difference in the charging speed of the CX 400BT and the AirPods, in which you can get up to 54 minutes of playback on a 10-minute charge. Comparatively, Apple provides 3 hours of charge with up to 15 minutes of charging. So, in this case, Airpods has handily defeated the Sennheiser. You can also measure the battery level more accurately with 10% increments, with the help of which you can say that there is still an hour left or 30 minutes.
Furthermore, the charging case adds 13 hours of extra playtime and allows users to use their earplugs on longer journeys. The total playtime adds to 20 hours, which means you can enjoy music for almost a day and night. It also supports fast charging, as you can fully charge the headphones in 1.5 hours. Likewise, you can listen to your favorite music tracks for up to one hour by charging earpieces for 10 minutes.
You can also read Audio-Technica ATH-TWX9 Earbuds Review
Final Verdict
The Sennheiser CX 400BT are great wireless earbuds with all the essential features, namely solid sound quality, great battery life, and advanced connectivity. Moreover, these earbuds are quite light in weight, so you can wear them around your ears without getting tired. But despite all this, they do not include features like ANC and waterproof.
Pros & Cons of Sennheiser CX 400BT
You can find here some pros and cons of the product. They will be helpful for you to decide between buying them.
Pros
- Excellent sound quality
- Premium build quality
- Lightweight
- It doesn’t cause discomfort
Cons
- No IP Rating
- No ANC
FAQs About Sennheiser CX 400BT
Find the correct answers to your queries about the product. We briefly answered all the questions arising in your mind about them.
