The vibrations of the Hitachi Style Wand are located just where you'd expect, in that large head. I don't experience any numbing, tingling or itching in my hand while I hold it, even during extended use. The vibrations impressed me. A deep penetrating rumble, it is nothing like the Hitachi. These vibrations aren't shallow and they won't numb you or make you feel like your teeth coming loose. They are exactly what I look for in a toy.