[. . . ] [. . . ] Press and hold both left and right buttons Turn on the power button on the bottom of mouse at the same time It will take about 3 to 4 seconds for linking. For Keyboard ID setting: 1. Keeping the keyboard to closed the receiver within 30cm Press and hold the "Esc" key Then remove and replace the battery It will take about 3 to 4 seconds for linking. [. . . ] [. . . ]