i got this one here Amazon.com: Blackweb BWB17AV002 Universal Remote Control: Electronics It works on my tv, sound bar that i have connect to my radio but to volumio i haven’t tried it.
So u saying that since i have a remotePi RemotePi Board for Pi 4 (External IR and LED) – MSL Digital Solutions any Ir 2.4ghz will work. So all i have to do is program the remote power button to the remote… the remote pi plug is install on the player