Using 10 patterns of pulsation, vibration, and escalation to choose from, nipple play has never felt this amazing! Choose the desired tension and adjust the rubber coated clamps until they're nice and snug. Select a function and let the tingly vibrations tease and seduce you. Try it with the free satin mask that is included to heighten your senses even more. Two AA batteries are required for delightful vibrations. Being teased never felt so good!