The Robo Suck. It sucks. It strokes. It vibrates at multiple speeds. If it did anything else, you’d need a license to operate it. The Robo Suck strokes, vibrates and sucks your penis simultaneously. The nubby sleeve inside the Robo Suck enhances the pleasure you feel. You control the level of vibration. You can also adjust exactly where the strokes touch your penis. The result is a volcanic orgasm that only simultaneous vibrating, stroking and sucking can deliver. The Robo Suck uses four C batteries. This male masturbator delivers a lot of power.