I first heard about Smyle mouse head mouse shortly after I lost the ability to control a mouse with my hand. I downloaded the free trial. The calibration was quick and easy, within minutes I was able to control the computer better than I had in years. I have been using Smyle mouse head controlled mouse software for just over year and I cannot imagine my life without it. I control my cable box, text my family, play games and even control my thermostat. Almost everything I am able to do by myself is because of Smyle Mouse.