You don't actually have orgasms, but you have that excited feeling and know you could with the slightest effort. Few men have that condition it's called chronic pelvic pain syndrome, and you'll know it if you have it , so the Aneros is most likely fine for you. The feeling becomes more and more intense, with pleasure waves rolling over my body. You can easily become a corpse that way. But actually, they are not.
It applies a very mild current through electrodes affixed to your legs, causing pleasure waves. The advantage of the Key Sound technique is that it is "natural" — it involves only your body — plus, it's the least expensive. I do some more breathing, and wham — another orgasm. I would cycle in and out of erections and leak "pre-cum," but with no orgasm.