Precise Stimulation: The rotating shaft massages the prostate while the vibrating base simultaneously massages the perineum. This Revo is certainly not for the faint of heart. With 6 stimulation modes, 2 wave rotation speeds, 2 directions of the rotating shaft, and 34 combinations of pleasure, it offers versatile options. Made from 100% body-safe silicone, it is USB rechargeable and waterproof.