The ROKK wireless charger 15W (12/24V) allows mobile phones or tablets to be charged simply by placing them on the device.Designed for nautical use, it is completely waterproof. IPX6 (Qi certified) has a highly non-slip and UV resistant surface.The wireless charger features 3-coil technology that ensures a charging area over 80% larger than previous versions.This implementation is the best one for mobiles with very powerful camera phones (15 W output power).