The Dynamic Handy Orgasm has 10 functions that feature 3 different levels of standard vibration (low, medium, high), rollercoaster, surge, insta surge, pulse, burst, even "step" and intermittent. There is no actual "thrusting" function so I am assuming that it is meant to be used for thrusting, as I tried, or I guess there are maybe 2 of them that could mimic thrusting. These are controled by a push button located on the bottom of the cap that also has an LED light that actually glows in tandem with whatever speed you have it set on. That is a really cool feature! When I used it, it was so bright it glowed from underneath the covers. I had to stop and see what was going on because I didn't know it did that! It is waterproof and, yes, I tried it so it does work. It runs on one AA battery that goes in the bottom and is covered by a small cap where the push button control is also located. One push turns it on and if you want to turn it off, just press it for a second or two and it shuts off. It is actually pretty powerful for using just one battery. Even the low vibration setting is pretty good. It is very quiet so whether you use it out in the open or under the blankets, it does not make much noise, which is great because I do not want anyone knocking on my bedroom door wanting to know what strange and loud machine I am using and what am I using it for! The vibrations themselves are located at the top but can be felt along the whole toy.