The Ultimate Dolphin is the ultimate water-toy for any adult. This 7 vibrator does it all, from having 6 different rotational features for the tight layered beads to having 10 different functions on the power dolphin clitoral stimulator, ALL of which have 4 different speeds, means you could have and endless amount of combinations to choose from. Waterproof to be used in and out of the water. Easy to use separate waterproof controls for vibration and rotation, at your finger tips. Uses 3 AA batteries.