This company does not stand by its product. I went through their resolution process regarding my smartpen not working. In the end it was a battery issue (pen not staying charged) and the company would only issue a $45 credit towards the purchase of another pen. Since we must register the pen upon purchase to receive their warranty, you would think a responsible company would have notified me, they found a problem with their pens and the pen must stay charged at all times. I didn't receive any such notification from the company. I guess their main goal is to sell more pens, will my mission is to inform everyone DO NOT buy anything from this company.