I’ve been using the SR1 for a couple of weeks now.
I’m really impressed how well it works. Even if I don’t completely fall asleep when I use it during the day I do feel more rested after using it.
I have tried it for meditation and it does help quieten the mind but then I fall asleep! Would be fascinated to try a similar device whilst being able to control the the frequency beta/alpha/theta…
You are doing some great work making this device available at a reasonable price.