PLUG AND PLAY Our wireless keyboard and mouse are easy to use. Simply plug the USB dongle into the USB port of your computer and install the batteries. This wireless keyboard and mouse is best used to connect to anything. It is ONLY ONE USB DONGLE to connect the keyboard with the mouse. The USB dongle is placed in the battery compartment of the keyboard. HIGHLY COMPATIBLE We recommend for Apple iMac and Macbook. Because it is based on the macOS user's habit to design. Our wireless keyboard mouse is also compatible with Windows computers or Android tablets TV box. iMac models: A1244 A1225 A1311 A1312 A1418 A1419 A1862 Macbook models: A1424 A1398 A1435 A1436 A1502 A1425 A1465 A1343, A1174, A1290,A1222, A1172 A1181, A1184, A1224, A1172, A1278,A1330,A1342, A1344 etc. WHAT IS DIFFERENT FROM OTHERS We are based on your habits, quality requirements, and expected price to design this keyboard and mouse. It is ready 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 for keyboard and mouse clicks. WORK LONG Our wireless keyboard and mouse are used to save energy. The keyboard uses two AAA battery units and one AA battery for the mouse. They can support up to 6 months. The package does not include the battery. Most Important Tip This keyboard and mouse use the automatic energy-saving technology that can turn itself off after 30 seconds when you are not using it. It does not have the power switch to turn on/off manually. Just press any key to wake it up. This is NOT the keyboard and mouse DELAYED TO RESPOND. This feature is to save power.