The Clit Critter Rotating Vibe features rotating vibration with beads perfectly sized to stimulate. Penetrating vibrations shimmy the shaft while equally powerful vibrations buzz the bunny. The easy to use controls control each feature of the vibe independently. There is also a “function” button that allows for easy selection of vibration pattern. This is especially useful for those dangling on the edge and needing an extra push. Uses 4 “AA” batteries, not included.