PLUG AND PLAY Our wireless keyboard and mouse is easy to use. Just plug the USB dongle to the USB port of your computer and install the batteries.This Wireless keyboard and mouse is used the best simple connection way for everyone. It is ONLY ONE USB DONGLE to connect with keyboard with mouse. The USB dongle is placed in the battery compartment of keyboard.: . WIDELY COMPATIBLE We recommend for Apple iMac and Macbook. Because it is based on the hobit of macOS user to design. Our wireless keyboard Mouse is also compatible with Windows computer or Android tablets devices TV box. iMac models:A1244 A1225 A1311 A1312 A1418 A1419 A1862 The macbook models: A1424 A1398 A1435 A1436 A1502 A1425 A1465 A1343, A1174, A1290,A1222, A1172 A1181, A1184, A1224, A1172, A1278,A1330,A1342, A1344 etc. . WHATS DIFFERENCE WITH OTHERS We are base on your habits, quality request and expect price to design this keyboard and mouse. It is completed to replace the keyboard and mouse that you are using. (1)Special keys for macOS and also compatible with Windows and Android, (2)Super long life of keyboard and mouse press. . WORK LONG TIME Our wireless keyboard and mouse is used the saving energy mode. The keyboard is used two units AAA battery, and, one AA battery for the mouse. They can support up to 6 months. The package is not included the battery.: . Most important tip This keyboard and mouse is used the auto saving energy technology that can turn off by itself after 30 second,when you has not used.It has not the switch key to turn on/off by manual. It just press any key to wake up . This is NOT the keyboard and mouse DELAYED to RESPONE. This function is effectly to save the power. . Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.