Sennheiser Cx

No noise cancellation, 9 h, Wireless
Delivered between 14.1.2026 and 27.1.2026
6 pieces in stock at supplier
free shipping

Product details

What really matters is the typical Sennheiser sound. Crystal-clear audio that impresses, with individually adjustable, rich bass. The ergonomic design ensures high wearing comfort. You can customize the touch controls to your liking and experience unparalleled sound, no matter where you are.

Key specifications

Isolation
Closed
Signal transmission
Wireless
Application range
General
Equipment + Functions
Microphones
Noise cancelling
No noise cancellation
Headphone type
Bluetooth headphonesIn Ear Headphones
Item number
16363401

General information

Manufacturer
Sennheiser
Category
Headphones
Manufacturer no.
508973
Release date
28.7.2021

Colour

Colour
Black
Exact colour description
Black

Application range

Application range
General

Headphone properties

Output
Stereo
Noise cancelling
No noise cancellation
Equipment + Functions
Microphones
Music control
Universal Bluetooth Remote
Signal transmission
Wireless

Headphone type

Headphone type
Bluetooth headphonesIn Ear Headphones
Fit
In Ear
Isolation
Closed
Driver diameter
7 mm
Durability
Splashproof
Protection type (IP code)
IPX4
Converter principle
Dynamic
Membrane size
7 mm

Audio properties

Frequency range
5 - 21000 Hz
Sensitivity
110 dB
Max. noise level
110 dB
Impedance
16 Ω

Connections

Connections base/transmitter
USB-C

Bluetooth features

Bluetooth version
5.2
Bluetooth feature
A2DPAVRCPHFP
Bluetooth profiles
A2DPAVRCPHFP

Power supply

Power supply
Rechargeable battery operated

Battery properties

Battery type
LiPo
Battery life
9 h
Capacity
420 mAh
Charging time
1.50 h
Charging input
USB-C

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
3 sizes silicone eartips

Product dimensions

Height
5.90 cm
Width
3.38 cm
Depth
4.23 cm
Weight
169 g

Package dimensions

Length
17.80 cm
Width
13.60 cm
Height
5.10 cm
Weight
195 g

30-day right of return
24 Months Warranty (Bring-in)

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Goes with

Reviews & Ratings

Warranty score

How often does a product of this brand in the «Headphones» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 90.Beats
    4 %
  • 90.Bose
    4 %
  • 90.Sennheiser
    4 %
  • 93.JBL
    4.1 %
  • 93.JLab Audio
    4.1 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 76.Hifiman
    6 days
  • 78.Edifier
    7 days
  • 79.Sennheiser
    8 days
  • 80.Suunto
    9 days
  • 81.Shokz
    11 days

Return rate

How often is a product of this brand in the «Headphones» category returned?

Source: Digitec Galaxus
  • 88.Google
    4 %
  • 89.Havit
    4.1 %
  • 89.Sennheiser
    4.1 %
  • 89.Sonos
    4.1 %
  • 89.Teufel
    4.1 %
Source: Digitec Galaxus

Translation: machine translated
Without ratingNo rating
Spiegel TestsTrue-Wireless-HeadsetsReleaseApril 2024

That's how they sound: The CX True Wireless are better suited to the synthesiser sounds of Jean-Michel Jarre than to the guitar rattling of Spoon. They reproduce the synth sound clearly and powerfully, whereas the Spoon song lacks precisely this clarity in the bass range. For my taste, they could be a little louder.