Silhouette S4 is a discreet and powerful remote control stimulator with easy retrieval cord. Features 8 incredible functions of vibration, pulsation and escalation. Warms as it vibrates. Warming feature heats to an incredible 107.5 degrees. Stimulator can be used with or without remote control. USB rechargeable (charging cord included). Made from silicone (stimulator, cord) ABS with PU Cote (controller, dÃ©cor). Stimulator measures 3.25'' X 1.25''. Controller measures 2.75'' X 1.5''. Requires 2 AAA batteries. From Cal Exotics.