https://play.google.com/store/apps/details?id=com.boostlabz.auraldelayer&hl=en I just downloaded - will try in a few minutes! Update: So i gave it a whirl while i was out on a walk. I've read about some of the research with daf but I haven't tried it myself. It was interesting to notice a change in my motor control after I began talking.. Will have to experiment.. Has anyone else ever used a DAF device/app?