When 4 ears are not enough..Made from soft flexible jelly, the Twin Rabbit fits snuggly at the base of the penis to help maintain erection. One set of vibrating ears stimulates the clitoris, while the other set stimulates the female's anus & buttocks. The vibrations are also strong for the man through the ring. Twin Rabbit brings volcanic, triple action to your lovemaking and each vibrating egg is optionally Pulsatron compatible so that you can enjoy any of 7 available orgasmic functions ... wave motion, pulsing, tingling & more! Product sold with single variable speed controller. A versatile companion for both your fantasies this product is highly recommended. Requires 2 'AA' batteries, included.