The Evolved Serenade in the Symphony Collection by Evolved Novelties is expertly designed with ridges along the shaft resembling sound waves for maximum stimulation. Choose from 3 vibrating speeds using the satin-coated push-buttons at the base of this waterproof vibe. Made from medical grade TPR material, the Evolved Serenade contours to your body's shape for comfort and pleasure. Comes in a decorative storage tin, perfect for gifting. Choose Pink or Blue. Uses 2 AA batteries, included courtesy of the Sinclair Institute.