To enter the code on spotify.com/pair, first open the Spotify app on your TV, game console, or smart device. Play any song, then select Settings and choose Pair a device to see a unique pairing code. Next, open a web browser on your phone or computer and go to spotify.com/pair. Log in to your Spotify account if prompted. Enter the displayed code exactly as shown on the screen and confirm. Once the code is accepted, your device will instantly connect, allowing you to control music playback remotely using your Spotify app.