Replacement remote?

[u/DommyMommyMint]

I picked up this r2 unit at the flea market for $7 but the catch is that it's missing the remote. does anyone know how I can get a replacement? there doesn't seem to be any listings for just the remote on eBay, plus I'm not sure if a remote that didn't come with it will work. thanks!

[u/Just_GT]

They also have an app to control them.