Can I use the online media sources as the alarm sounds?

Yes. To set the music for alarm and timer, you can upload the music you like, customize the music by pasting the music URL, or choose the built-in sounds or TuneIn radio.
To do this, please go to Vobot app or myvobot.com, choose [alarm/timer] >[options]>[edit], select or upload the music you like, and then click [done] and [save].