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Overall review for Sennheiser CX 400BT True Wireless headphones

Having formed its credentials to be a true wireless earbud front runner of high end quality with the two generations of its Momentum True Wireless, Sennheiser now has focused mainly on the less rarefied scope in which Apple, Microsoft, Sony and others have competed. Costing 169 pounds or 199 US dollars, the Sennheiser CX 400BT True wireless headphones are the product from this brand in this market. And successfully the model is well made. They come with aptX Bluetooth connectivity, with SBC and AAC codecs, along with app-based EQ adjustment as well as really responsive touch controls which you can personalize through the app. Finally, users can operate the headphones through such assistants and Google Assistant or Siri.

Similar to other expensive devices such as the Momentum True Wireless 2, this model also has the same 7-mm dynamic driver. However, there is no active noise cancelling technology on these headphones. With four sizes of eartip in the packaging and the convenient arrangement, there is, in fact, a lot of passive noise-cancelling provided when you adjust the headphones to fit your ears.

When it comes to the aesthetic level, there is not much to appreciate here. Sennheiser has never become the best headphones brand around. So if you are looking forward to something like Apple or Microsoft, you will be disappointed. The plastics on which they are made do not provide anything special, and honestly, the CX400BT look a little bit clumsy, but although they weigh totally 12 grams for both earbuds, they can sit on your ears comfortably even over extended periods of use. Extended periods here mean a battery life of up to 7 hours from the earbuds. The charging case also provides 13 hours more. A total of 20 hours’ battery life is not impressive, even bad, thus it makes the Sennheiser headphones receive a minus in comparison with many other competitors.

Last but not least, mentioning the sound quality of CX400BT, they are an open and detailed listen, with some talent in which texture and timbre are taken into account.

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