The Stronic is is a PULSATOR not a vibrator. They are the first toys in the world to actually thrust (not vibrate). They do not use classic turbine motors, rather, they contain a new patented technology called Drive Technology, which Fun Factory invented in their German Labs, in Bremen.
Fun Factory currently has three amazing toys in the Stronic line up. First is the STRONIC EINS a traditional shape and can be used HANDS FREE in a variety of positions because it's back and forth thrust motions keep it in place inside the user !! STRONIC allows user to surrender control in a whole new way.
Finally the newest is the STRONIC DREI also unisex (fit for anal or vaginal play). Very similar in shape and size as the Zwei but adorned with wonderful ridges for everyones pleasure.
The entire Stronic Line up come equipped with Fun Factory's "Click n Charge" technology making them rechargeable. They are 100% waterproof, yes you can use them in the hot tub. Multi function with 'naturalistic”, rhythmic thrusts patterns (10 in all). They are made with the highest quality 100% medical grade silicone and come with a two year warranty.