The black vibrating butt plug has a tapered tip for easy insertion. The shape has a variation in size. The anal plug has multiple vibration speeds, which can be controlled with the remote control. The vibrating butt plug has a Memory Function, which remembers the most used vibration mode for you. Waterproof USB rechargeable 12 powerful vibration modes Memory function On and off button on the bottom Remote control 1 x AAA battery Made of silicone