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Sennheiser CX 400BT White True Wireless In Ear Headphones


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4 Months 0% Finance

When you spend £99 or more

Condition: New

Brand-new, unused, unopened and undamaged item in original retail packaging (where applicable).


Limited 2 year warranty.  More info

Only 1 left in stock.

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Was: £169.99

Your day-to-day may change but your enjoyment of superior sound won’t. Powered by Sennheiser’s leading audio technology, the new CX 400BT True Wireless gives you total control over an exceptional sound experience. With intuitive customizable controls, long-lasting battery life and a design made for all-day comfort, they are the ideal, uncompromised choice for people that are passionate about great sound.

                                                                                       Better sound. Better Control                                                                                                                      Whether you’re in the mood for calming tunes or crave some thrilling beats, the bespoke drivers of the new CX 400BT True Wireless deliver high-fidelity sound with deep bass, natural mids and a clear, detailed treble. Plus, you can personalize your listening experience with built-in equalizers to enjoy amazing sound quality that’s tailored to you.

<b>Premium sound. Any device.</b>

Premium sound. Any device.

No matter where you stand – iOS or Android – you’ll always get to enjoy the outstanding sound quality of the new CX 400BT True Wireless earbuds. Thanks to our wide range of audio codec support including SBC, AAC and aptX, premium sound is guaranteed with any mobile device.

<b>Anytime. All the time</b>

Anytime. All the time

Never miss a beat throughout the day with 20 hours of battery life – 7 hours on a single charge and a further 13 hours with the small, sleek and compact charging case. The new CX 400BT True Wireless earbuds are designed to ensure you get premium sound wherever you go.

<b>Minimalist Design. Stylish comfort</b>

Minimalist Design. Stylish comfort

The new CX 400BT True Wireless is made for those who enjoy diving into a long playlist, a lively audiobook or a loving phone call. Available in black and white, they have an ergonomic design created for all-day comfortable wearing.

Create your sound experience
Pair your Sennheiser device with our smart control app.
Customise what you hear and how you interact with your Sennheiser device.

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

Dimensions 59 x 33.8 x 42.3 mm (Earbuds And Charging Case)
Weight 49g (Both Earbuds And Charging Case) 6g (Single Earbud) 37g (Charging Case)
Package Dimensions(L x B x H) 170 x 115 x 47 mm
THD, Total Harmonic Distortion <0,08% (1kHz / 94dB)
USB Standard USB-C
Warranty 2 years
Frequency Response (Microphone) 100 Hz to 10 kHz
Bluetooth Version Bluetooth 5.1 Compliant
Supported Profiles A2DP, AVRCP, HSP, HFP
Frequency Response 5 - 21,000 Hz
Ear Coupling In-ear, Closed Acoustics
Charging Time 1.5 h For Full Charge / 10 Min For 1h Playtime
Power Supply 5 V⎓, 600 mA max USB Charging via USB-C Socket At Charging Case
Battery Specification Built-in Lithium-Ion Rechargeable Batteries
Codecs SBC, AAC, aptX™
Battery Time Up to 7 hrs Music Playtime With Earbuds Up to 20 hrs Music Playtime With Charging Case
App Support Sennheiser Smart Control App for iOS™ and Android™
Speaker Type Sennheiser 7mm Dynamic Driver
What's In The Box? CX 400BT True Wireless Earbuds, Silicone Ear Adapter Sets (XS, S, M, L), Charging Case, USB-C Cable, Quick Guide & Safety Guide.

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

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