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: 22 x 3,7 cm (8,66 x 1,46 in). 1?Year Warranty. Travel lock (press ON and hold for two seconds).