Wireless mechanical keyboard with Czech characters now costs just over a thousand! It's backlit and has quality switches

The Eternico K800S is on Alza for 1,119 CZK after applying the code ALZADNY20. From the original 1,399 CZK, this is a drop of almost three hundred, and given 33 ratings with an average of 4.7 stars, it’s an offer worth considering — even if reviews show a few reservations.

Quick summary:
✅ It makes sense if you want to try a mechanical keyboard without a large investment. Gateron Brown switches are a universal choice — tactile but relatively quiet, making them suitable for both office and home use. CZ/SK localization with backlit characters is quite a luxury in this price category.
⚠️ Consider that the keyboard does not have configuration software — everything is set via keyboard shortcuts. And the 75% format means that the F-row is not physically separated, which might complicate orientation for some.
💡 For 1,119 CZK, you get a wireless mechanical keyboard with a 2.4 GHz dongle, Bluetooth 5.0 (up to 3 devices), USB-C cable, RGB backlighting with 22 effects, Gateron Brown switches, full n-key rollover, backlit CZ/SK characters, an integrated 3750 mAh battery, and a combination of aluminum and ABS plastic.

Gateway to Mechanical Keyboards

The main advantage is the combination of features you won’t find at this price point. A wireless mechanical keyboard with backlighting, full CZ/SK localization (including backlit characters with diacritics — which is a premium feature compared to standard stickers) and three connection modes. Gateron Brown switches are a classic choice for people transitioning from membrane keyboards — they are not as loud as blue switches, but they have a tactile bump you feel when pressed. Reviews repeatedly state that the press is “pleasant” and the keyboard feels premium.

Connectivity is very versatile — you can have the keyboard simultaneously paired with up to five devices (one via 2.4 GHz dongle, three via Bluetooth, one via cable) and switch between them. This is practical for people who switch between a laptop, gaming PC, and tablet. The Win/Mac switch is hardware-based — flip it, and the keyboard will start sending the correct Mac modifiers.

What to Expect (and What Reviewers Repeat)

Reviews quite reliably agree on two things. First — configuration software is missing. Everything is set by holding Fn and pressing a specific key.

The second regular reservation — the 75% format is unnecessarily cramped for some. The F-row is not physically separated from the top row of numbers, and the arrow keys are tightly packed next to the right Shift. If you are used to a full-sized keyboard and rely heavily on touch typing, it will take some getting used to. Reviewers agree that after a few days, however, one gets accustomed to it.

Then there are minor inconveniences. Battery life with backlighting on is relatively weak — reviewers report 2 days of intensive use with fully lit RGB. If you reduce the backlighting to a low intensity or choose one static color, the battery life extends to a week or more. CapsLock and NumLock indicators seem barely visible to some users; the backlight only shines brighter in the active state, not a different color. And a few reviewers point out that the sliding mode switch sometimes rattles.

A small detail at the end — in some variants, the keyboard comes with a QWERTZ layout (Z and Y swapped), but the keycaps are interchangeable, so you can swap them manually.

What do you prefer in a keyboard — full-size, or a compact 75% format?