Three motors work at once: one along the internal shaft for the receiver, one on the wearer's sensitive spots, and a third placed where wanted - controlled alone or by remote. Three modes, three intensities, layered to taste. Silky, non-porous, easy-to-clean body-safe silicone, 100% waterproof to IPX7, rechargeable in about 120 minutes for 70 minutes. The wearer carried along in what they give.