While I was busy enjoying the curved shaft targeting my g-spot I didn't notice the nubs very much. They are an added feature that, when not climaxing, create additional stimulation. There is no noise to worry about or batteries...this toy is ready to be used anytime you want to. I would imagine that because of the base, someone could rig it onto a strap if they were inclined. Also, because of the base, I would assume that anal would be an option.