The classic Jelly Caribbean series enters the new age with the Crystal Caribbean series. The same great shapes and soft jelly material that you know and love, with a new 10 Function controller that will have you reach new levels of ecstasy that you?ve only dreamt of. Easy to use push button controls at your fingertips, will have choosing between your favorite vibrating pleasures, such as pulsating, surging and the ultimate roller coaster spurt. Waterproof for fun in and out of the water. Uses 2 “AA” batteries not included.