Entirely couple-friendly and a beautiful gift idea, the smooth outer shell glides over the skin, as near-silent vibrations draw from the powerful motor. Made with the smoothest body-safe silicone with an ABS core, Alia is completely waterproof and has a 3-button interface that controls vibration intensity through 6 variable modes. Alia is rechargeable and one charge lasts up to four hours of use. Alia is completely waterproof. 86 x 57 x 34mm / 3.4 x 2.2 x 1.3in.