Interested in reviews of Eternico Essential Wireless set KS4011 black - CZ/SK? It got 3.8 out of 5 stars from our customers. Find specific customer reviews of Eternico Essential Wireless set KS4011 black - CZ/SK below. We will appreciate if you also share your experiences with Eternico Essential Wireless set KS4011 black - CZ/SK after purchasing.
Eternico Essential Wireless set KS4011 black - CZ/SK
Rated 11/02/2026, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase
keyboard cool
came with flashlights
good price
the mouse is absolutely useless, I will never use it because it is stupid and it is right out of the box
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Roman, Praha
Rated 03/12/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase
In the product description it is stated that the keyboard connects via USB nano receiver 2,4 GHz. However, there is no receiver in the keyboard slot or in the package. Will you send it to me or should I return it?
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Reply from Alza
08/01/2026
Hello, thank you for your suggestion, which we have investigated further. The receiver should be stored in the mouse and works for both mouse and keyboard. If this is not the case, I will ask you to claim the product and we will check everything. I apologize and thank you for your understanding. If necessary, please do not hesitate to contact us. Thank you and have a nice day, Ondřej - Alza expert
Customer
Rated 25/11/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase - review from a price comparison website
Keyboard worse, for basic purposes ok
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Company
Rated 23/11/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase
I tried 3 sets and not one was OK. The first one didn't even last 2 days of use. The second one had a bad mouse and the third one apparently short-circuited and the keyboard batteries overheated and couldn't even be pulled out as they were hot.
price and ergonomics
battery life
(un)reliability
Dangerousness
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Customer, Aš
Rated 25/09/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase
Good price
Signal from the keyboard does not go to a greater distance or obstacles. The keyboard did not respond when the sensor was plugged into the back of the PC
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Martin, Boršov nad Vltavou
Rated 21/09/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase - review from a price comparison website
Good response time for press-to-execute function
Goods fit as described and immediately fully functional
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Jaroslava, Teplice nad Metují
Rated 16/09/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase - review from a price comparison website
My advice is not to buy and pay extra for a better one. Within two months, you will see a return on your investment in the form of saved batteries.
The mouse would still work fine, although sometimes when dragging the click "drops out"
The battery in the keyboard won't even last two weeks WITHOUT use. The included alza battery lasted a week and the computer was only running for six hours. The expensive better batteries last max two weeks and again this is regardless of use. Does that heat up the keys or what?
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Roman, Klášterec nad Ohří 1
Rated 06/09/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase - review from a price comparison website
the battery in the keyboard drains soon
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Michal, Milevsko
Rated 15/08/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase
he's doing everything he's supposed to
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Lenka, Modřice
Rated 17/05/2025, variant Eternico Essential Wireless set KS4011 black - CZ/SK
Verified purchase - review from a price comparison website
The keyboard keeps disconnecting
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