There are two bullet vibes that are controlled from a simple push button located on the base of the vibrator. There are three speeds to choose from; low, medium, and high. The larger of the two bullets is located in the tip of the shaft and focuses the majority of the vibrations on the G-spot. The smaller bullet is located in the base of the clitoral stimulator. The two bullets combined vibrations allow the vibrations to be felt though out the entire vibe. The waterproof feature works well, the battery compartment and controls functioned well in the bath. The battery compartment does need to be screwed down completely to get a water tight seal. At the lowest setting the vibe is quiet but there is a noticeable increase in noise on the higher two settings. The vibe uses three AAA bateries that are placed in a holder that slides into the base of the vibe.