Sennheiser HD400U

NC, Cable
2Ratings
BrandMore from Sennheiser
Delivered Tue, 1.9.
Only 3 pieces in stock
free shipping

Product details

The Sennheiser HD 400U is an open headphone designed for music lovers who value sound quality. With a modern USB-C connection, it allows for an instant digital link that delivers uncompressed sound directly from your device. The HD 400U offers an impressive listening experience that highlights the emotional depth of music. Its careful tuning ensures clear mids, sparkling highs, and controlled bass, creating an authentic sound profile. The headphone comes with a 1.4 m long, detachable cable for easy handling and storage. Additionally, it features passive noise cancellation to ensure an undisturbed listening experience. The HD 400U is the ideal choice for anyone who wants to experience music as the artist intended.

  • Open headphones for transparent sound
  • Direct digital connection via USB-C
  • Carefully tuned sound for emotional details
  • Passive noise cancellation for uninterrupted listening
  • Detachable cable for easy handling.

Key specifications

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

General information

Item number
66148010
Manufacturer
Sennheiser
Category
Headphones
Manufacturer No.
800126
Release date
8.1.2026
Sales rank in Category Headphones
813 of 8398

Colour

Colour
Black
Exact colour description
Black, Black, czarny, Negro

Application range

Application range
Lifestyle

Headphone properties

Noise cancelling
NC
Equipment + Functions
Microphones, Removable cable
Music control
Universal (1-button remote control)
Signal transmission
Cable
Button functions
Accept call

Headphone type

Headphone type
Over-ear headphones
Fit
Headband
Isolation
Closed
Adjustability
Removable cable
Converter principle
Dynamic

Audio properties

Frequency range
18 - 20000 Hz
Sensitivity
120 dB
Impedance
18 Ω

Connections

Audio Connections
1 x USB-C

Power supply

Power supply
USB power delivery

Battery properties

Charging input
USB-C

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂ emissions
29.26 kg
Climate contribution
CHF 0.70

Scope of delivery

Scope of delivery
Bag, USB cable
Headphone case
Soft case

Product dimensions

Height
9.40 cm
Width
17.80 cm
Depth
12.80 cm
Weight
217 g

Package dimensions

Length
15.50 cm
Width
12 cm
Height
10 cm
Weight
350 g

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

Compare products

Show all

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
  • 71.Bowers & Wilkins
    2.9 %
  • 71.Happy Plugs
    2.9 %
  • 71.Sennheiser
    2.9 %
  • 75.1More
    3 %
  • 75.LogiLink
    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
  • 77.Hifiman
    7 days
  • 77.OneOdio
    7 days
  • 80.Sennheiser
    8 days
  • 81.Suunto
    9 days
  • 82.Technics
    12 days

Return rate

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

Source: Digitec Galaxus
  • 98.Edifier
    4.5 %
  • 100.Beyerdynamic
    4.6 %
  • 100.Sennheiser
    4.6 %
  • 102.Jabra
    4.7 %
  • 102.Mayaxess
    4.7 %
Source: Digitec Galaxus