The Vibrating Fur Twin has two balls covered with delicate hairs that provide a soft tingling sensation. Each ball has it’s own vibrating motor, allowing you to literally be in two places at once! It’s connected to it’s controller with a cord. The controller has a simple slide dial to control the vibration. The vibration intensity is variable and can be adjusted by moving the slide dial. There is also an LED above the slide dial that glows red when the Vibrating Fur Twin is in operation. It uses 2 AA size batteries which are included. The batteries are installed by removing the panel on the rear of the controller. -Covered with fur (small washable jelly nodules) -Tickling sensations -Handheld controller -Mutliple speed -Batteries included