I only use the spooky2 audios that are on YouTube. I’m talking of the ones that sound really weird and have no actual music. Most of these are 20 minutes long, some are 15 minutes long. I have about 30 of them in a playlist on my phone and they last about 7 hours. I turn off the little speaker on the unit (Scalar Harmony) so my ears don’t hear all the weird sounds while I’m trying to fall asleep, but all the cells in my body DO hear the audio. And that is great!!!
Source: https://www.facebook.com/groups/spooky2scalar/posts/1132522630654627/?comment_id=1133767800530110
