Most vibrators function as a blunt object of erotic stimulation. You turn them on, they vibrate. Sure, you can alter the speed or pattern of vibration, and some of them have parts that swivel, but there's not a lot of subtlety involved.But with the SaSi, things are different. From the top side, the SaSi looks a bit like a sleek, wireless mouse. Flip it over, however, and its true nature is revealed. You'll see a small bump, and it's this bump that makes all the difference. It kicks into action when you turn the SaSi on, moving along the clit as fast or as slow as you wish: it moves sideways, it moves in circles, it moves up and down. Most importantly, it places pressure (not vibration, but pressure) directly on or around the clit. As you may have guessed, it pretty closely stimulates getting head. Try getting a Hitachi Magic Wand to do that.But that's not all: in addition to the movements of its magic bump, the SaSi is also capable of vibrating in a traditional style. With the push of a different button, the body of the SaSi starts rocking and rolling. Vibration can be increased or decreased, or set to a variety of pulse patterns. If you can imagine a small tongue moving just the way you like that's connected to a flat, vibrating head ... well, that's pretty much what the SaSi is like. In other words, it's awesome.