I haven't managed to make it work yet! The instructions are so tiny, you need a microscope to read them, because even with a magnifying glass they're not visible! What a shame...

It is plug and play on Android TV and Windows decoders that I tried. The power button synced easily with the TV (it uses IR, it has instructions).
The mute and play-pause buttons are very useful.
I had no issues except with the gboard that I couldn't handle. It was resolved with another keyboard from the Google Play Store.

One negative aspect is that if you don't leave it on a flat and soft surface, it wobbles for a bit. This happens because it doesn't have at least 3 feet. They designed it this way to be ergonomic, which they achieved.
The second negative aspect is that it makes a high-frequency sound when it's not in stand by (meaning when you press a button for 1-2 minutes).
The third negative aspect is the microphone. Many times you have to shout for it to hear. Compared to the microphone of the Cosmote TV remote control, it is much inferior.

In conclusion, for 12-15 euros, it is worth it and does its job perfectly fine.

It does not synchronize properly (does not open or close the box, does not press the letters, the only thing it did was to go from movie to movie with the wheel, the cursor did not respond at all and constantly wanted me to set it up again) with the Xiaomi Mi Box S, but I have no complaints as they gave me a full refund without any difficulty

In my case, the remote control DID NOT have a gyroscope. It is possible that others may be the same. Therefore, before purchasing it, talk to the store to be sure of what you are buying. Also, if someone wants to get it without the gyroscope, I think it is expensive because you control the mouse movement using the D-pad instead of waving the remote (air mouse). In the Mi Box S, the off button works but you cannot turn it back on. You can program the off button, for example, to turn off the TV. The button for voice commands works. My MAIN issue was the gyroscope (I wanted to get an air mouse). Otherwise, it's okay, but expensive for what it does.

The on/off button for the Beelink device I have does not work. I mean, I have plugged in the USB to the device and when I press to turn it on, it doesn't open. I have to unplug the power and plug it back in