Sennheiser CX 80U

NC, Cable
1Ratings
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Product details

The Sennheiser CX 80U In-Ear headphones offer an outstanding sound experience made possible by a wired USB-C connection. These headphones are designed to deliver the typical Sennheiser sound with clear details and balanced frequencies. The in-ear design provides effective passive noise isolation, allowing users to enjoy music undisturbed even in loud environments. The integrated remote control and microphone enable easy management of calls and music without the need for a Bluetooth connection. Weighing only 14.3 grams, the headphones are lightweight and comfortable to wear, making them ideal for everyday use. The CX 80U is the perfect choice for anyone who values sound quality and user-friendliness.

  • Natural, balanced sound for an authentic listening experience
  • Wired USB-C connection for immediate use without pairing
  • Integrated remote control for easy call and music management
  • Effective passive noise isolation for uninterrupted music enjoyment.

Key specifications

Application range
General, Lifestyle
Noise cancelling
NC
Equipment + Functions
Microphones
Signal transmission
Cable
Headphone type
In-ear headphones
Isolation
Closed
Audio Connections
1 x USB-C

General information

Item number
66148012
Manufacturer
Sennheiser
Category
Headphones
Manufacturer no.
800125
Release date
8.1.2026
Sales rank in Category Headphones
90 of 8244
External links
Manufacturer's site (de)

Colour

Colour
Black
Exact colour description
Black

Material

Material
Silicone

Application range

Operating system compatibility
Android, iOS
Application range
General, Lifestyle

Headphone properties

Output
Stereo
Noise cancelling
NC
Equipment + Functions
Microphones
Music control
Universal (1-button remote control)
Signal transmission
Cable
Button functions
Accept call, End call, Volume Down, Volume Up

Headphone type

Headphone type
In-ear headphones
Fit
In Ear
Isolation
Closed
Driver diameter
9.70 mm
Converter principle
Dynamic

Audio properties

Frequency range
17 - 20000 Hz
Sensitivity
119 dB
Impedance
28 Ω

Connections

Audio Connections
1 x USB-C
Connections base/transmitter
USB-C

Power supply

Power supply
None

Voluntary climate contribution

CO₂ emissions
5.74 kg
Climate contribution
CHF 0.13

Scope of delivery

Scope of delivery
Various earmolds

Product dimensions

Height
2.60 cm
Width
8.10 cm
Depth
8.30 cm
Weight
14.30 g

Package dimensions

Length
12 cm
Width
8 cm
Height
2 cm
Weight
48 g

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

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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
  • 79.Creative
    3.2 %
  • 79.Fresh'N Rebel
    3.2 %
  • 79.Sennheiser
    3.2 %
  • 83.OnePlus
    3.3 %
  • 83.Suunto
    3.3 %

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
  • 82.Edifier
    7 days
  • 82.Hifiman
    7 days
  • 84.Sennheiser
    8 days
  • 84.Suunto
    8 days
  • 86.B&O Audio
    9 days

Return rate

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

Source: Digitec Galaxus
  • 92.Audio-Technica
    4.3 %
  • 92.Marshall
    4.3 %
  • 92.Sennheiser
    4.3 %
  • 96.Hama
    4.5 %
  • 97.FiiO
    4.7 %
Source: Digitec Galaxus