Gjack²  Features Ergonomic design, fancy colour, a Powerful yet quiet motor and BIOSKIN™ technology. Six vibration modes with changeable intensity, from light to intense vibration. Intuitive controls. Gjack²  is odourless and 100% waterproof. Play up to 4 hours on one charge of battery. Rechargeable by magnetic charger. Including Travel lock (press ON and hold for two seconds).