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.
66995
Brand-new, unused, unopened and undamaged item in original retail packaging (where applicable).
New
Limited 2 year warranty. More info
Limited 2 year warranty. Please see manufacturers website for full details.
After purchase we will contact you to organise a suitable delivery date with our two man 'white glove' service.
Please provide your email address and we will remind you when "Sennheiser CX 400BT Black True Wireless In Ear Headphones" is back in stock.
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.
.jpg)
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.
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.
.jpg)
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.
| 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. |
Buy Now, Pay Later: Get 4 months 0% finance when you spend £99 or more. Look for the PayPal Credit button when making your purchase.
More information on PayPal Credit is available here.
Stock information not available for this product, please contact us for more details.
Please see our stock information page for more details on how we show stock information on this website.
When in stock:
This item is available dispatch Monday to Friday, subject to cut-off times and excluding public holidays. Next working day and weekend deliveries available.
Delivery is available to most addresses within the United Kingdom. Some services may not be available to all postcodes. More information is available at the basket and on our delivery page.
We do not dispatch orders to addresses outside of the United Kingdom.
