I have been a few years already problems with my prostate. My Doctor told me about this unit and I wanted to see if it will help. I have to say this was the best purchase I have made lately. I can sleep through the night again and not as before stand 3 to 5 times to go to the bathroom. I did not expect that it works so well. Currently I use it 3 times a week, so for about 2 minutes. Thank you for this device, it has improved my life again.