Ovira

My boyfriend just got me ovira for Christmas. It’s supposed to transmit small pulses which overload the nerves and stops pain signals from traveling to the brain. It’s supposed to help with cramps, endometriosis and other things. Today is my first day trying it out. I just was wondering if anyone else out there has tried it. Do y’all wear it all day? Any advice on using it? I’ve read the stuff on their site but was just wondering about personal experiences. Thanks!