Sennheiser at Audio46

Sennheiser CX Plus True Wireless with Active Noise Cancellation


true wireless

with mic

active noise-cancelling


Product SKU: 509188


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Product Details

(Specifications and appearance of this product are subject to change without notice)
↓ Details provided by Sennheiser

CX Plus True Wireless

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 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 customize. Everything for a great sound experience all day long.

  • Active Noise Cancellation
  • Transparent Hearing
  • Customizable Touch Controls
  • IPX4
  • TrueResponse Transducer
  • Battery Life (24 hrs)

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 customizable 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.

Smart Control App

Take control

Customize the touch controls to adjust your music, voice assistants, and calls to your liking.

Hear what you want

Zero surroundings or just a little? With Active Noise Cancelling and Transparent Hearing you control the external sounds.

Listen your way

Easily adjust the sound to your personal taste with the intuitive Built-In Equalizer.

Boost your sound

Have the audio experience you want using the equalizer presets and Bass Boost.


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.

What's in the box?

  • CX Plus True Wireless Earbuds
  • Silicone ear adapter sets (XS, S, M, L)
  • Charging Case
  • USB-C Cable
  • Quick Guide & Safety Guide

Technical Data

Earbuds and charging case: 59 x 33.8 x 42.3 mm (2.3 x 1.3 x 1.6 in)
47g (both earbuds and charging case) 6g (single earbud) 35g (charging case)
Frequency response (Microphone)
100 Hz to 10 kHz
2 mic beamforming arrays (4 mics in total)
Power supply
5 V⎓ 600 mA max
Speaker type
TrueResponse Transducer Sennheiser 7mm dynamic driver
USB Standard
Noise cancellation
Active Noise Cancellation
Package dimensions
(L x W x H) 170 x 115 x 47 mm (6.7 x 4.5 x 1.85 in)
Ear coupling
In-ear, closed acoustics
Charging time
1.5 h for full charge / 10 min for 1 h playtime
Battery Specification
Built-in Lithium-Ion rechargeable batteries L/R earbud: ~55 mAh; charging case: ~400-420 mAh
Bluetooth 5.2 compliant. Class 1, 10 mW
Bass Boost
Via Smart Control App
Battery time
up to 24 hours overall playtime with charging case
App support
Sennheiser Smart Control App for iOS™ and Android™
Supported Profiles
SBC, AAC, aptX™, aptX Adapative
EQ pre-set via Smart Control App
Frequency response
5 hz - 21,000 Hz
2 years

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