You'll need a device with Bluetooth LE support and a browser that supports Web Bluetooth (modern Chrome/Edge/Chromium-based browsers). Put your remote in pairing mode, and the click the "Pair!" button below.
Wait for your Remote to show up, click "Connect" and wait up to ~45 seconds for it to connect. It's normal to see multiple addresses with the same name -- you can pick any of them.
If you're having issues connecting, forget the pairing from your OS, turn off the remote, turn it back on, and try re-pairing. It can be tricky to get it connect, but it will eventually work.