Sennheiser CX 400BT True Wireless
Better Sounds. 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 – 6.5 hours on a single charge and a further 13.5 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.
Key Features:
What's in the Box:
Sennheiser CX 400BT True Wireless
Available:In Stock
- Product SKU: 508901
- Usually ships within 24 hours
- Free Standard delivery on orders above $89
- Express delivery available at checkout
$229.00
$329.00

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Sennheiser CX 400BT True Wireless
Superior sound. Tailored to you.
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 Sounds. 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 – 6.5 hours on a single charge and a further 13.5 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.
Key Features:
- 7mm dynamic driver – Powered with Sennheiser’s audio expertise
- Built-in equalizer – Personalize the audio experience
- Customizable touch controls – Full control of music, calls and voice assistant
- SBC, AAC and aptX – Enjoyable sound for iPhone and Android users
- Up to 6.5 hours play back time with up to 20 hours available with on the go charging via the case
- Ergonomic design – Optimal comfort and secure fit with 4 ear adapter sizes
- Bluetooth connections management – Easily manage your audio sources with Sennheiser Smart Control app
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
Sennheiser CX 400BT True Wireless
Superior sound. Tailored to you. 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 Sounds. 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 – 6.5 hours on a single charge and a further 13.5 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.
Key Features:
- 7mm dynamic driver – Powered with Sennheiser’s audio expertise
- Built-in equalizer – Personalize the audio experience
- Customizable touch controls – Full control of music, calls and voice assistant
- SBC, AAC and aptX – Enjoyable sound for iPhone and Android users
- Up to 6.5 hours play back time with up to 20 hours available with on the go charging via the case
- Ergonomic design – Optimal comfort and secure fit with 4 ear adapter sizes
- Bluetooth connections management – Easily manage your audio sources with Sennheiser Smart Control app
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