I am so please to deal with Miridia technology. First of all all their products are of excellent quality. And secondly their customer service is really top notch. I am tech challenged and when I need help they always go way beyond to help me figure out anything.... Also my last purchase from them has been the CES Ultra machine. I gave it to my son for Christmas and after using it myself, I bought another one for me. That said I am sharing it with my husband as it helps him with his sleeping issues. So glad we have something other than medication to treat our sleeping and anxiety. I highly recommend miridia Tech!