Vibrating vaginal balls have a motor in the ball that makes them vibrate . This motor can often be controlled with a remote control. Besides the fact that you can train your internal muscles with these vibrating balls, it also provides pleasure. The vibrations stimulate the nerves on the inside, especially your G-spot . There are women who can even have an orgasm through vibrating vaginal balls. Most vibrating balls have a string that makes it easy to remove them.