I like this toy because it keeps my family Jews from hiding up inside me when I’m excited. The vibration is nice for my partner but overtime makes me feel itchy or numbness. Vibration modes are the same as any toy with the standard vibration modes. I would like it to be adjustable intensely but I’ll take what I can get. The design with the rubber points on the balls didn’t appeal to me so I cut them down. This makes the toy more comfortable and sits nicer on my package. The rubber and charge mechanism is of quality.