I hope you like the stimwave better than I did. I'm having mine taken out. I had it a year ago. I followed rules for 3 mos and got so frustrated that I just quit using it. It advertises wireless. That's a laugh! it may be inside you but you still have to rely on a battery that you have to keep charged. I had everything tested a couple different times.and it showed everything was working ok, but I could not get the antenna to connect to the end of the lead. Rarely could I find the pulse even when I put it on the highest it had.I couldn't keep the battery in the right place. I have a roll around my tummy and when I moved, the battery would move off the end of the terminal. This was the first time I tried to look up reviews. I just hope you have better luck than I did. Perhaps if you are curvy in the right places, it may stay in place. Let me know how you get along with it. I can't offer any advice. I'm having mine removed so that I can possibly have spinal fusion to keep the bones in the right place, L4 and 5.