You can connect your Bluetooth compatible devices, wirelessly and enjoy music in headphoneBluetooth: Yes
Connectivity Type: Wireless
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.
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.
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.
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.
Pair your Sennheiser device with our Smart Control app.
Customize what you hear and how you interact with your Sennheiser device.
iOS and Android
What's in the Box
Wireless Earbuds, Charging Case, USB-C Charging Cable, Silicone Headphone Adapter Sets (Size XS / S / M / L) and Manual
Closed, intra-aural dynamic stereo headphonesAuto-On / Off functionCharging via USB-C connectorPremium rechargeable, hard case
Affordable reference class of wireless In-Ear headphones for outdoor and indoor listeningDynamic sound with a wealth of bass and musical detailsWireless Bluetooth 5.1 transmission using aptX, AAC and SBC codecsNatural listening sensation - extremely realistic and natural sound field