From Funtoys. Gjack2 is made of Bioskin as close to the human body as possible. Being 100% waterproof, Bioskin Gjack2 is great to play with in the bath. Gjack2 boasts its magnetic charger so now charging is super easy and smart. Powerful yet quiet motor. Six vibration modes with changeable intensity from light tremors to intense vibration. Intuitive controls. Up to 4 hours operation on one charge of battery. Magnetic charger. Please note initial charging time is 2 hours. Size 8.66 inches by 1.46 inches. 1 year warranty. Travel lock. Press ON and hold for two seconds.