Don’t compromise on sound
Superior audio
Wherever you are, whatever you do; enjoy your favorite tracks to the max with the bespoke TrueResponse Transducer for crystal-clear sound.
Intense groove
With the Bass Boost added and the Built-In Equalizer activated via the Smart Control App, you can have your sound your way.
Skip the noise
You can forget about your surroundings and get lost in the music or focus on your call thanks to the Passive Noise Cancellation.
Wherever you are, whatever you do; enjoy your favorite tracks to the max with the bespoke TrueResponse Transducer for crystal-clear sound.
Intense groove
With the Bass Boost added and the Built-In Equalizer activated via the Smart Control App, you can have your sound your way.
Skip the noise
You can forget about your surroundings and get lost in the music or focus on your call thanks to the Passive Noise Cancellation.
Don’t compromise on comfort
Easy to wear
The eye-catching ergonomic design assures superb wearing comfort. And with ear adapters in 4 sizes, it’s easy to achieve a perfectly secure fit for any activity.
At your fingertips
Customizable touch control enables easy control of audio, phone calls and fast access to Siri and Google Assistant.
Even in the rain
Go outside at any time to have an outstanding audio experience, even when it’s wet; you can rely on their IPX4 splash resistance.
The eye-catching ergonomic design assures superb wearing comfort. And with ear adapters in 4 sizes, it’s easy to achieve a perfectly secure fit for any activity.
At your fingertips
Customizable touch control enables easy control of audio, phone calls and fast access to Siri and Google Assistant.
Even in the rain
Go outside at any time to have an outstanding audio experience, even when it’s wet; you can rely on their IPX4 splash resistance.
AVAILABILITY
Sennheiser Smart Control is a free app and compatible with most iOS and Android systems.
This app is available in 8 languages including German, English, French, Spanish, Russian, Korean, Japanese and Mandarin.
Android
Version 8.0 and up
Android, Google Play and the Google Play logo are trademarks of Google LLC.
Version 8.0 and up
Android, Google Play and the Google Play logo are trademarks of Google LLC.
iOS
Version 13.0 and up
Apple, the Apple logo and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries and regions. App Store is a service mark of Apple Inc.
Version 13.0 and up
Apple, the Apple logo and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries and regions. App Store is a service mark of Apple Inc.
What's in the box?
- CX True Wireless Earbuds
- Silicone ear adapter sets (XS, S, M, L)
- Charging Case
- USB-C Cable
- Quick Guide & Safety Guide
Technical Data
Dimensions
- Earbuds and charging case: 59 x 33.8 x 42.3 mm (2.3 x 1.3 x 1.6 in)
Weight
- 49g (both earbuds and charging case) 6g (single earbud) 37g (charging case)
Power supply
- 5 V⎓ 600 mA max
Speaker type
- TrueResponse Transducer Sennheiser 7mm dynamic driver
USB Standard
- USB-C
Frequency response (Microphone)
- 100 Hz to 10 kHz
Frequency response (Headphones)
- 5 hz - 21,000 Hz
Microphone
- 2 mic beamforming arrays (4 mics in total)
Supported Profiles
- A2DP, AVRCP, HFP
Ear coupling
- In-ear, closed acoustics
Charging time
- 5 h for full charge / 15 min for 1 h playtime
Battery Specification
- Built-in Lithium-Ion rechargeable batteries L/R earbud: ~60 mAh; charging case: ~400 mAh
Bluetooth
- Bluetooth 5.2 compatible, class 1, BLE
Codecs
- SBC, AAC, aptX™
Equalizer
- EQ pre-set via Smart Control App
Bass Boost
- Via Smart Control App
Battery time
- Up to 9 hrs music playtime with earbuds Up to 27 hrs music playtime with charging case
Noise cancellation
- Passive Noise Cancellation
App support
- Sennheiser Smart Control App for iOS™ and Android™
Package dimensions
- (L x W x H) 170 x 130 x 47 mm (6.7 x 5.1 x 1.85 in)
Warranty
- 2 years