After reading about the Pavlok in a reply by @Thatgirl, I decided to ask Mrs. F for one for Christmas. She surprised me with it, because I really didn't think she would go for it. My primary initial objective is to make myself averse to porn as it has continued to be an issue for me. Later I want to work on personal focus at work. First let me say that after charging it according to the directions, I had trouble getting it to pair initially which was required to get the first firmware update to work. It worked from the morning of the 25th until around the same time a day later, at which point it became completely unresponsive. I followed the directions on the Pavlok website and let it drain overnight before attempting to recharge it. (Recovery was not according to their more optimistic estimates of 4-5 hours, which I initially tried.) It finally accepted a charge and then I was able to get it re-paired with my phone. I played with the levels a little initially. It starts out at 30%, which I thought was nothing. I quickly ratcheted it up to 100% which will get your attention, but isn't super long lasting. I shocked myself once on the 25th after pulling up a pornographic image of one of my favorite models and did the same thing on the morning of the 26th, before it died. Today after getting it to come back to life, I decided I would try to place the plate against the back side of my scrotum underneath the cage. Initially the connection was inadequate and it would not deliver the charge. After a minute or two I was able to give myself a zap at 100%. At the time it, "got my attention" more forcefully than the shock to my wrist, but it wasn't excruciating. I gave myself a second zap about 30 seconds later, closed the website I had pulled up, and set the device aside. As I was writing my previous post in a different thread, I began to feel a dull ache in both testicles like I had been kicked moderately. The feeling increased over the next five to ten minutes. It's now been close to 30 minutes and my balls still throb somewhat. I can function fine, but they definitely have my attention. I will likely use this mechanism for administering future shocks over the next week, as it seems a bit more intense and certainly longer lasting than using the wrist. I may try it on my glans or shaft at some point if I'm unlocked, although that would be impractical for general use and I honestly, can't imagine it hurting worse than on the scrotum. I'm sure that a KH, could use it as a powerful training tool, were she of a mind. I'll be curious to see what others say.