FLower fields drone
If you are looking for something spiritual,
something interesting to relax or get in a kind of chill vibes .
Drones sounds 400 hrz is the best way.
For meditation. or backgrounds on your music set up.
By touching you can make different courts and sounds low deep and higher.
4 voice changing sounds by touching the leaves Check demonstration movie .
Nice to use and effects processor or guitar pedal delay .
And reverb. It comes included a battery