It is a little hard to descripe but I would say it is a bit like someone hit the head of the penis hard. The lowest is just one hit. The higher ones are multiple hits a fraction of a second apart and feel like really hard hits. This is using it with the plastic CB.
With the MM steel device it is more like a quick intense burning sensation on the front of the scrotum where the bottom of the cage is against it.
The intensity of repetions of the shocks is owner adjustable. My KH adjusted the highest shock up where I could not bring myself to push the button. Fortunately, she uses that level very carefully and only if I refuse to do something she wants me to or some similar infraction.
With the MM steel device it is more like a quick intense burning sensation on the front of the scrotum where the bottom of the cage is against it.
The intensity of repetions of the shocks is owner adjustable. My KH adjusted the highest shock up where I could not bring myself to push the button. Fortunately, she uses that level very carefully and only if I refuse to do something she wants me to or some similar infraction.