. RF Frequency 2.4 GHz Keycap type Chocolate Genius Key support Yes Customizable Function Keys F1~F12 SmartGenius support Yes, SmartGenius App Download Visual Function Key Bar Virtual Yes App Profile support Yes Function keys Yes Mouse Sensor engine Optical Mouse Resolution (DPI) 1000 Mouse Number of buttons 3 (left, right, middle button with scroll) Battery type One AAA alkaline battery for keyboard One AA alkaline battery for mouse Weight (g) Keyboard: Approx. 422.5 g (without battery) Mouse: Approx. 54.5 g (without battery) Dimensions (W x H x D) mm Keyboard: 446.40 x 133.31 x 23.25 mm (17.57 x 5.25 x 0.92 inches) Mouse: 97 x 55 x 35 mm (3.82 x 2.17 x 1.38 inches) Compatible OS Windows® 7, 8, 8.1, 10 Mac OS X 10.8 or later Colors Black *Product color and images shown on the package are for reference ONLY. For actual items, refer to the physical goods contained herein. What's included One keyboard One mouse One USB pico receiver One AAA alkaline battery for keyboard One AA alkaline battery for mouse Multi-language quick guide