The plusOne Air Pulsing Arouser gives you four levels of vibration intensity Waterproof for safe fun in the shower or bath Made from vegan, GMO-free, gluten-free, paraben-free, and chlorine-free body-safe silicone Soft and smooth to the touch, the plusOne is easy to clean Rechargeable lithium-ion battery uses premium magnetic charging connection via included USB cable, with full charge lasting for 3 hours of fun