Place pick in mouth before pressing any buttons.  Trust me on  this.
WOW!!!!  This thing is really awesome.  It comes with a variety of picks; a brush, a buffer and I forget the others.  I totally love it and the only problem is getting the picks back into their box. Buy it. You won't be sorry but you will need a USB port to recharge it but there is some power  in it when it arrives.  Enjoy!!!
Rating: 5 stars