Sennheiser CX 400 BT True Wireless Black
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According to our earbuds expert
With the Sennheiser CX 400BT, you can enjoy high sound quality wirelessly with the Bluetooth profile aptX. This profile ensures that the signal between the earbuds and your smartphone is very stable and able to transfer more data. This way, the quality of the music is nearly the same as it would be with a cable connection. Do you want to adjust the sound of the earbuds? Download the Sennheiser Smart Control app and personalize the sound reproduction via the equalizer. The earbuds last 7 hours on a full battery.
Type of ear cushions | In-ear | |
|---|---|---|
Noise canceling | ||
Sound quality according to customers | Good | |
Carrying comfort according to customers | Good | |
Bluetooth | ||
Built-in microphone |
5 stars
5
4 stars
8
3 stars
2
2 stars
0
1 star
0
The Sennheiser CX 400BT is the little brother and cheaper version of the Sennheiser Momentum TW II. The CX 400BT doesn't have noise canceling, but the sound quality of these earbuds impresses me.
sleek design When I take the charging case out of the box, I notice that the case is small and light. This allows me to easily put it in my pocket along with my phone. The earbuds are in the case and look sleek. I put the earplugs in my ear canal and see that they fit nicely on my ears. They don't stick out very far and are firmly attached.
Impressive sound I listen to a lot of dance music. In this genre, I think it's important that the bass is powerful. These Sennheiser earplugs do not disappoint me in this regard. The punch from the kicks comes through with a heavy thump without losing most of the detail. The mid-high tones are emphatically present, just like the low tones. Voices and instruments jump to the foreground as a result.
No extensive app In the Sennheiser Smart Control app I use the equalizer. With an equalizer I determine how the sound sounds and on which keys the emphasis is placed. The Sennheiser equalizer is mediocre, because the sound doesn't sound the way I want it to. If I select more bass, the other tones are suppressed too much. This is a shame, because this is not the case with other equalizers.
Lucas. Audiospecialist.
3 September 2020
Automatically translated from Dutch
I really like the Sennheiser CX 400 BT True Wireless earbuds. The earbuds have a nice design and come in a handy case. Different sizes of tips are included, making them suitable for every ear. You have to put them in your ear with a twisting movement, but they stay in place. The quality of the sound is good and it is easy to adjust with the accompanying app. However, the choice in terms of adjustments is somewhat limited. The earplugs can be operated with touch buttons. I am not in favor of this myself because with every touch, for example to do the caps well, the sound goes on pause. I'd rather turn this off. The Sennheiser CX 400 BT True Wireless have a long battery life and are easy and quick to charge. The handy case makes it easy to carry. Apart from some minor points, I think they are fine wireless earplugs.
Daphne34
16 October 2020
Automatically translated from Dutch
These ears fit like a glove. The sound quality is superb. You can easily adjust the equalizer via the app that you can download for free in the app store. The touch controls of the earphones take some getting used to in the beginning, but once you get used to it, it works super fast. It takes a while to connect to your phone's bluetooth and it works. Even with running and sports, these earphones stay in place and do not fall out.
DR
21 October 2020
Automatically translated from Dutch
Product number | 867663 | |
|---|---|---|
Manufacturer code | 508900 | |
Brand | Sennheiser | |
Warranty | 2 years | |
Processing of your defect | Via Coolblue | |
Old product returned for free |
Weight in grams | 49 g | |
|---|---|---|
Color | Black | |
Material | Plastic | |
Built-in microphone |
Water-resistant |
|---|
True wireless earbuds | ||
|---|---|---|
NFC | ||
Compatible with applications | ||
Application options | Installation help, Personalize control buttons, Personalize sound, Read battery status, Update firmware |
Bluetooth | ||
|---|---|---|
Bluetooth version | 5.1 | |
Bluetooth profiles | Hands-Free Profile (HFP), Headset Profile (HSP), High-quality audio (aptX), Remote control (AVRCP), Standard Audio (A2DP) | |
Multipoint pairing |
Type of USB port | USB-C | |
|---|---|---|
Power supply type | Rechargeable battery | |
Charging case | ||
Battery life case | 13 hours | |
Wireless charging | ||
USB port |
Sound reproduction | Stereo | |
|---|---|---|
Hi-Res audio | ||
Sound quality according to customers | Good | |
Noise canceling | ||
Volume limit | ||
Frequency range | 5 - 21000 Hz |
Tested by expert | ||
|---|---|---|
Equalizer |
Headphones wearing method | Earbud | |
|---|---|---|
Type of ear cushions | In-ear | |
Remote control on ear cups | ||
Physical buttons ear cups | ||
Touchpad ear cup | ||
Volume control ear cup | ||
Carrying comfort according to customers | Good |
Best tested |
|---|
Detachable cable | ||
|---|---|---|
Ribbon cable | ||
Coil cable | ||
Braided sleeve | ||
Remote in cable |
Earbuds (sleeves) included | ||
|---|---|---|
Number of earbuds (sleeves) included | 4 | |
Size | L, M, S, XS | |
Headphones adapter included |
