Superior Sound. No Compromise.
Get yourself the best-in-class earbuds that make listening a joy. With Active Noise Cancellation to block out your surroundings and Transparent Hearing to stay aware whenever you want. The new CX Plus True Wireless earbuds from Sennheiser have it all, like superb ergonomic design and intuitive controls for maximum comfort and ease of use. And up to 24 hours of play time to enjoy crystal-clear sound and deep bass you can customise. Everything for a great sound experience all day long.
Get Perfect Sound
First-class sound - Enjoy your music at home, at work or on the go with the bespoke TrueResponse transducer for perfect sound.
Block noise - With Active Noise Cancellation, immerse yourself in the clarity and details of your music and calls without distractions.
Stay aware - You’re in control of your sound: with the Transparent Hearing mode you can also focus on external sounds and stay in touch with the world around you.
Get maximum comfort
For your comfort - They are made for you: with their ergonomic design and ear adapters in 4 sizes, you will find the perfect fit for any activity.
Ease of use - Have everything under control from audio and phone calls to fast access to Siri and Google Assistant with the customisable touch controls.
Keep on playing - Want to listen all day long? With 8 hours of battery life and a further 16 hours extra with the charging case, you’ll have up to 24 hours of play time.
Just get the best
Deeper bass - Get into the groove with the adjustable Bass Boost activated via the Smart Control App.
Also when wet - Use them whenever you want, even in the rain: with their IPX4 splash resistance you don’t have to worry if it gets wet.
Top features
Superior sound, no compromise, powered by Sennheiser's TrueResponse transducer, personalised with the built-in equaliser and Bass Boost |
Active Noise Cancellation and Transparent Hearing to block out noise or gain awareness of external sounds at a touch in any environment |
Customisable Touch Controls for music and voice assistant to match individual preference for intuitive operation, along with independent earbud use |
IPX4 splash resistance for trouble-free use while travelling, commuting or exercising |
Compact, ergonomic design with 4 ear adapter sizes to ensure optimal comfort and a secure fit for anyone |
Up to 24 hours play time - the 8-hour battery life that can be extended on-the-go up to an additional 16 hours with the charging case |
Technical Specifications
USB Standard |
USB-C |
Power Supply |
5 V⎓ 600 mA max |
Speaker Type |
TrueResponse Transducer Sennheiser 7mm dynamic driver |
Frequency Response (Microphone) |
100 Hz - 10 kHz |
Frequency Response |
5 - 21,000 Hz |
Microphone | 2 mic beamforming arrays (4 mics in total) |
Equaliser | EQ pre-set via Smart Control App |
Bass Boost | Via Smart Control App |
Noise Cancellation | Active Noise Cancellation |
Bluetooth Version |
Bluetooth 5.2 compatible, class 1, 10mW |
Charging Time |
1.5 h for full charge / 10 min for 1 h playtime |
App Support |
Sennheiser Smart Control app for iOS™ and Android™ |
Battery Specification |
Built-in Lithium-Ion rechargeable batteries L/R earbud: ~55 mAh; charging case: ~400-420 mAh |
Battery Time |
Up to 24 hrs overall playtime with charging case |
Supported Profiles |
A2DP, AVRCP, HFP |
Codecs |
SBC, AAC, aptX™, aptX Adaptive |
Ear Coupling | In-ear, closed acoustics |
Included Accessories |
Charging Case, Silicone Ear Adapter Sets (In sizes XS,S,M,L), USB-C Charging Cable, Quick Guide, Safety Guide |
Product Code | 509189 |
Colour | White |
Dimensions | 59 x 33.8 x 42.3mm (earbuds and charging case) |
Weight | Single Earbud - 6g / Charging Case - 35g |
Warranty | 2 Years |
Please be advised that due to health and safety and hygiene reasons, we are unable to accept returns of this item if the seal has been broken on the packaging.
Why Burton Blake?
Since 2012, Burton Blake is the benchmark for timeless brands that add a unique touch of luxury to your life. Every week we add new products to indulge your fancy.