Put outdoor string lights in pairing mode?

Hi - I want to put my new String Lights in pairing mode so I can connect them to Home Assistant. I've tried some of the processes that work for other devices (hold power for 5 seconds, hold power and volume up for 5 seconds, try connecting right after powering on, checking the settings page for a "put in pairing mode" button).

Is there a way to get these things into pairing mode?

Thanks!