Super Powerful motors promotes Intense Orgasms and Clitoris Stimulation with a Sure Grip Stretchy Ring promoting Blood flow to the Penis for longer lasting firmer Erections.Easy On Off switch Function (with push button). - 3 LR41 Replaceable Batteries included. Features: Velvety Surface. Powerful Motor. Waterproof for bath & shower. Phthalates Free. 3 LR41 Batteries Included.