Remapping keys.

Hi all. I've got one of those little presentation remotes. On the iPhone, in presentation mode, it moves around the screen with Voiceover. On the Mac, it does ... stuff. Here's a dude with a really annoying video on remapping with Keyboard Maestro. https://www.youtube.com/watch?v=NhJpmR3Exd4 How can I find out what codes this thing is sending without it triggering anything? No, keyboard help isn't the answer, it tells you what some keys are but other keys, e.g. mute, just kill speech and I have to mess with things to get it back. In case anybody's better at googling than I apparently am, it's specifically this one. https://satechi.com/products/r2-bluetooth-multimedia-remote-control The quick start guide is garbage, basically telling you how to pair with Bluetooth and power it on, fine, but I can't find anything on the default keymappings for the two modes, multimedia and presentation, and if there are any buttons that can't be remapped. One of them triggers some sort of mouse mode where you can wave the remote around in the air and have it move the pointer around in your presentation, for example. Googling brings up a lot of stuff about an app called Remote Buddy, but that's totally inaccessible, the window just shows the app name and a quit button. Keyboard Maestro should be accessible, from everything I've heard about it, but of course, I need to know actual keycodes in order to remap things.