Large 16-inch size, suitable for most laptops. Supports Bluetooth and Wi-Fi. Although compatible with all smartphones, it is not necessary to use the smartphone as an interface. The latest generation of hydrogel films (SS-057) are very easy to apply, guaranteeing a bubble-free result and long-lasting impact resistance, far superior to traditional tempered films. Once applied, they are virtually invisible and guarantee perfect touch screen functionality. Small scratches from daily use are absorbed within a few hours, ensuring a perfectly glossy and transparent surface.