The V-Twin Auto Nipple Suckers provide a dual sensation experience with suction and vibration. Each suction cup comes with its own individual vibration source, so that you can independently control each one to your liking.
To use, firmly place both suction cups over each nipple and press the suction button to activate the suction. After a few seconds, you will see your nipples start to gently rise. At this point, you can turn on each vibration for even more stimulation. Each vibration has 3 settings - press and hold to turn them off.
If at any point you would like to turn off the suction, there is an air release button on the controller.
Tip: For a better air seal, apply a small amount of lubricant around the edge of the suction cups.