Need help with using first rabbit vibrator!

First off, I'm not very tech savvy and (believe it or not) I'm still learning the anatomy of my vagina so bear with me. I just got my first rabbit vibrator (decadent Indulgence) and I'm having trouble figuring out how it works. So far I've only manged to figure out how to turn the toy on and that the shaft part goes inside my vagina. What's the little hummingbird for exactly? What do the beads do? Since the shaft will be rotating inside me, I assume it will massage the walls of my vagina and my clitoris er... my vulva??? Sorry for all the questions, I'm totally clueless. lol less