Name: Sennheiser Accentum Open Black
Brand: Sennheiser
SKU: 963449
Price: 79.9 EUR
Availability: InStock
Rating: 8.7 (19 reviews)

Review is 8,7 out of 10, based on 19 reviews.
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Sennheiser headphones

Sennheiser Accentum Open Black Main Image

Sennheiser Accentum Open Black product in use

Sennheiser Accentum Open Black accessory

Choose your earbuds:

Black

Color: Black

Charger not included

Retail price

€ 89,90

€ 79,90

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€ 67,-

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2 years warranty on your product

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Customers rate Coolblue 4.5/5

Active in the Netherlands since 1999

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Product information
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Reviews
Insurance
Specifications

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Noise canceling
- No
- Yes
- Yes
- Yes
- No
Type of ear cushions
- Earbud
- In-ear
- In-ear
- In-ear
- Open ear

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Product information

Pros and cons

According to our earbuds expert

You barely feel the earbuds thanks to the lightweight design, so you can wear them for a long time without problems.
With the 6-hour battery life of the earbuds and 22 hours of the case, you can enjoy music for a long time.
Because the earbuds are splash proof, they won't break when you drop them in the rain by accident.
You can't shut yourself off from your surroundings as there's no noise canceling.

Description

With the Sennheiser Accentum Open Black, you can enjoy music for a long time. Thanks to the lightweight design, you don't feel the earbuds in your ear. That way, you can wear them easily the whole day without getting bothered by them. Thanks to the 6-hour battery life, you can use the earbuds the whole afternoon without problems. The charging case has a 22-hour battery life, so you can enjoy music for days. You can also use the earbuds outside, because it's splash proof with an IPX4 certification. As a result, the earbuds don't break when you accidentally drop them in the rain. Thanks to multipoint connectivity, you can connect the earbuds to up to 8 devices. This way, you can switch quickly from your smartphone to your laptop, for example.

Tips for using this product

Included by default

Charging cable

Key specs

	Type of ear cushions	Earbud
	Noise canceling
	Average battery life	6 hours
	Bluetooth
	Built-in microphone
	Water resistance	Splash proof

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Reviews

Rating

5 stars

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3 stars

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Most helpful reviews

Our expert review

Lightweight earplugs with high wearing comfort

Easy connection without an app
Clear sound
Compact size
Material feels fragile

The Sennheiser Accentum Open earbuds feel light. I hardly feel them in my ear. I think the music sounds clear and balanced. The material of the earbuds and case feels a bit fragile.

Easy connection I can easily connect the earbuds to my phone. I put the earbuds in the charger and open the Bluetooth settings on my phone. They automatically appear in the menu. Then I click on them and the earbuds are connected. I find it convenient that I don't need an app, as I do with other earbuds or headphones.

Clear sound I think the sound is clear when I listen to music. I can clearly hear vocal voices and the background music sounds clear. I find the bass tones solid, which allows me to hear the beat well with rap or techno. This allows me to get lost in the music. With a podcast I can clearly hear voices. However, the sound here sounds a bit thinner and further away. It therefore sounds a bit less realistic.

Compact design The case and the earbuds are compact. The earbuds do not stick out and have a short stick. I find this handy, because my hair does not get caught on them easily. My earring also does not bump into the earbud easily. The case fits easily in my trouser pocket and does not feel heavy. The material of the case does feel a bit fragile, I think.

Open design I would not say that the design is open, because the earbud goes in my ear. I do hear a lot of my surroundings, which is characteristic of an open design. When I turn up the music, I hear conversations in the office, but I do not hear what is being said. When I do want this, I turn the volume down a bit. Now I can hear what is happening around me well. On public transport, the conductor's voice sounds clear.

Linde
7 May 2025
Automatically translated from Dutch

Review is 8,0 out of 10.

8,0/10 ()

Good quality product but not for everyone

Good sound quality
Long lasting battery life, both the case and the earbuds themselves
Can be connected to many devices (simultaneously)
On the large side for my ears so they don't fit great

I was allowed to test this product and was immediately pleasantly surprised by the look. Beautiful sleek case and beautiful neutral color. The sound quality did not disappoint either. Exactly what you are used to from Sennheiser products and the lack of the noise canceling option does not detract from the quality. The battery also lasts a long time, I have used them quite a lot every day for a few hours and only had to charge them after a week. In addition, it is very nice that you can connect them to many devices, which makes it very easy to use. The only downside for me personally is that they are just a little too big for my ears, which means that they slowly fall out of my ear when talking, chewing and moving a lot. When I sit still, I have less trouble with this. Still, they fit better than all the 'in-ear' earphones I have tried.

Roos
23 June 2025
Automatically translated from Dutch

Review is 8,8 out of 10.

8,8/10 ()

Very good earbuds with a small design flaw

Good sound
intuitive
comfortable
pauses sometimes

Good sound, comfortable, and very easy to use. Easily connect to multiple devices simultaneously.

The sound quality of these open-back earbuds is lower than earbuds with silicone eartips, but you can still hear your surroundings. This is great when you want to be able to hear something of your surroundings, such as the (tiny) people around you or the traffic.

A downside is that they occasionally pause automatically. This happens when I move something, like bending down, chewing, or turning my head. I think this is because they think they're falling out of my ear, so they automatically pause. You can't disable this feature because there's no app.

David
11 November 2025
Automatically translated from Dutch

Insure your earbuds

Coolblue takes care of everything, from taking out an insurance to repairs
For almost all accidents
More coverage in case of damage than your standard warranty
No deductible

How do I insure my earbuds?

First, add your earbuds to your shopping cart. On the next page, choose one of the Protection Plans below. You always have a 30-day return window and pay no deductible in case of damage or theft.

2-year Protection Plan
€ 13,99
one-time
2-year Protection Plan with theft cover
€ 27,99
one-time
Protection Plan - Monthly cancelable
€ 0,99
per month
Protection Plan with theft cover - Monthly cancelable
€ 1,99
per month

Specifications

The list with properties are filtered when you type

Product

Product number	963449
Manufacturer code	700430
Brand	Sennheiser
Warranty	2 years
Processing of your defect	Via Coolblue

Physical properties

	Weight in grams	4,35 g
	Color	Black
	Material	Plastic
	Built-in microphone

Resistance

	Water-resistant
	Water resistance	Splash proof
	IP certification	IPX4

Connection

	True wireless earbuds
	NFC
	Compatible with applications
	Application options	Installation help, Personalize control buttons, Personalize speech assistant, Update firmware
	Compatible with voice assistant	Google Assistant, Siri