10 modes of vibration are powered by a simple one-button control located at the base, and the powerful motor is located right where you need it most - in that C-spot loving tip that offers a cupped side for full contact as well as a nubbed tip for pinpoint stimulation. Luv is waterproof for fun in & out of the water and easy cleanup. Silky smooth silicone. 1XAAA Battery (not included).