Review title is Witchcraft? [SEP] I'm a dude and I love this thing. It arrived last night and after an over night charge is was ready to go. I had a super painful callus on the ball of foot. It bothered me for months. It's now gone and my feet are incredibly soft. This thing is some sort of witchcraft<br /><br />Update<br />Device stopped working after just a few weeks.  Won't turn on with full charge. I was worried about this after reading other reviews.