Oneplus Touch refers to the function that requires the mobile phone system to be updated to EMUI3.0 or above and affixed with a touch film to be used. The principle is the film and software to achieve, through a special film, the screen button on the front of the machine to add two touch areas and three physical key areas below, the five red dot part has the key function, double-click on the left can quickly record, double-click on the right can quickly take photos, the following is equal to three more physical keys, the film can give the phone better operating functions