2.4gh (2400) rf signal - device to control?

OK, the remote should at least have an FCC label if it was authorized for sale in the US. Look for the FCC license on the label, which might be inside the battery compartment.

If you’re not in the US, then look for any similar label or just post a photo of whatever labels there are.

There is another alternative, assuming the remote still works, which is to add a robot button pusher to push the buttons on the remote. I myself am quadriparetic, so I do use these in my own home and they work quite well if you want voice control or to add them to your automations. The only thing is they may cost more than you want to pay if it’s just a convenience issue.

Here’s a review of one of the most popular button pushers that I wrote for this forum. This brand is available in both the US and EU. (The topic title is a clickable link)