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Sennheiser Accentum Open

No noise cancellation, 6 h, Wireless
Price in EUR including VAT
Delivered between Tue, 14/4 and Thu, 16/4
More than 10 pieces in stock at supplier
free shipping

Product details

The Accentum Open from Sennheiser are high-quality in-ear headphones designed for a premium listening experience. These true wireless earbuds offer a wireless connection via Bluetooth 5.3 and are equipped with a noise reduction function that effectively minimises ambient noise. The headphones are particularly user-friendly as they offer an integrated microphone function for calls and music track control. With a battery life of up to 6 hours and a standby time of around 28 hours, they are ideal for everyday use. They are also IPX4 rated, which means that they are protected against splashing water and can therefore also be used during sporting activities or outdoors. The supplied charging station ensures that the headphones are always ready for use.

  • Bluetooth 5.3 for a stable wireless connection
  • Noise-cancelling function for undisturbed listening
  • Integrated microphone for calls and music track control
  • IPX4 protection against splashing water
  • Charging cradle for easy charging and extended use.

Key specifications

Noise cancelling
No noise cancellation
Equipment + Functions
MicrophonesTrue Wireless
Signal transmission
Wireless
Headphone type
Earbuds
Isolation
Open

General information

Item number
57857031
Manufacturer
Sennheiser
Category
Headphones
Manufacturer no.
700430
Release date
17/4/2025
Sales rank in Category Headphones
55 of 6148
External links

Colour

Exact colour description
Black

Headphone properties

Noise cancelling
No noise cancellation
Equipment + Functions
MicrophonesTrue Wireless
Music control
touchpad remote control
Signal transmission
Wireless
Button functions
Accept callnext songPausePlayReject callVolume DownVolume Up

Headphone type

Headphone type
Earbuds
Isolation
Open
Driver diameter
11 mm
Durability
Splashproof
Protection type (IP code)
IPX4
Converter principle
Dynamic
Membrane size
11 mm

Audio properties

Frequency range
25 - 15000 Hz
Sensitivity
109 dB
Max. noise level
109 dB

Connections

Connections base/transmitter
USB-C

Bluetooth features

Bluetooth version
5.3
Bluetooth feature
A2DPAACAVRCPHFPMultipointSBC
Bluetooth profiles
A2DPAACAVRCPHFPSBC

Power supply

Power supply
Rechargeable battery operated

Battery properties

Battery type
Li-ion
Battery life
6 h
Capacity
400 mAh
Charging time
1.50 h
Charging input
USB-C

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
13,31 kg
Climate contribution
EUR 0,34

Scope of delivery

Scope of delivery
Charger housingUSB Type-C charging cable

Product dimensions

Height
5.17 cm
Width
10.10 cm
Depth
2.53 cm
Weight
38 g

Legal Notice

Product Safety

Package dimensions

Length
9.50 cm
Width
9 cm
Height
3.30 cm
Weight
116 g

14-day cancellation right
30-day right of return
24 Months statutory warranty
Legal concerns

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

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

Source: Galaxus
  • 70.Creative
    3,2 %
  • 70.Fresh'N Rebel
    3,2 %
  • 70.Sennheiser
    3,2 %
  • 73.OnePlus
    3,3 %
  • 73.Suunto
    3,3 %

Statutory 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: Galaxus
  • 75.Edifier
    7 days
  • 75.Hifiman
    7 days
  • 77.Sennheiser
    8 days
  • 77.Suunto
    8 days
  • 79.B&O Audio
    9 days

Return rate

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

Source: Galaxus
  • 79.Marshall
    4,3 %
  • 82.AKG Pro
    4,4 %
  • 82.Sennheiser
    4,4 %
  • 84.Hama
    4,5 %
  • 85.FiiO
    4,6 %
Source: Galaxus

Translation: machine translated
Very good82/100
hifi.deSingle testReleaseAugust 2025
  • PositivePowerful, broad sound
  • PositiveVery comfortable fit
  • PositiveSimple and high-quality design of the buds
  • NegativeSomewhat muffled sound in places
  • NegativeNo app, no equaliser
  • NegativeModerate workmanship of the charging case