Wireless remote control vibrators are activated via a radio frequency signal generated by a handheld controller, much the same was as a remote control toy car operates. Both the vibrator and the remote controller contain their own batteries to supply power.The radio signal from the controller switches the motor in the vibrator on and off and controls the speed. Usually there aren't any wires involved at all, but sometimes the vibrator will have a tail-like antenna attached to it for better reception