I got a couple of these:
they work fine with Volumio 2 & 3 on RPI3, RPI4, Wyse3040 thin client.
You need only to plug the dongle into an USB port.
Frankly speaking, any “Air Mouse” does the trick, even the one posted by the opener,
Just check the buttons layout, before you buy. Be sure you get an air mouse with the basic buttons you could find on a standard remote: play, stop, next track, previous track, volume, etc.
Cutting & pasting from my old posts with some use details:
About the remote
After experimenting remotes with diodes you need to connect to the bus, I found a simpler solution with the “Air Mouse” types. A remote like that provides out-of-box, plug&play, functions of play/stop & track skip togheter volume control for Rasperry. With a Wsye 3040, you can enjoy a safe ON/OFF functions, too, with just a simple bios setting. More again, since the air mouse communicates with the unit wirelessly via its own USB dongle, you can drive the unit through the wall of another room. This is the perfect solution for me, since I have to hide my wyse, the dac and the amplifier, inside a furniture of my living room.
from here
and
Other than inserting the dongle supplied with the remote, into a USB port, nothing at all. No bios config, no drive, no OS script or setup-up. An Air Mouse is just a mouse with multimedia buttons on it. After a while of use, I can, now, navigate the Volumio UI from my armchair, just looking at the TV set.
It needs some exercise, since you have to learn to rotate just the wrist, not move the arm.
from here
HTH