PLUG AND PLAY: Our wireless keyboard and mouse are easy to use. Simply plug the USB dongle into the USB port on your computer and install the batteries. This wireless keyboard and mouse uses the best simple connection method for everyone. There is ONLY ONE USB DONGLE to connect the keyboard and mouse. The USB dongle is located in the battery compartment of the keyboard. WIDELY COMPATIBLE: We recommend it for Apple iMac and Macbook, as it's based on macOS user habits. Our wireless keyboard and mouse are also compatible with Windows computers or Android tablets and TV boxes. 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'S THE DIFFERENCE COMPARED TO OTHERS: We base this keyboard and mouse on your habits, quality requirements, and expected prices. It's a complete replacement for the keyboard and mouse you're currently using. (1) Special keys for macOS and also compatible with Windows and Android, (2) Super long lifespan for keyboard and mouse key presses. WORK LONGER: Our wireless keyboard and mouse use power-saving mode. The keyboard uses two AAA batteries and the mouse uses one AA battery. They can last up to 6 months. Batteries are not included. Important tip: This keyboard and mouse use automatic power-saving technology that may turn off automatically after 30 seconds of inactivity. There is no power switch to turn it on/off manually. Just press any key to wake it up. This is NOT the keyboard and mouse being SLOW TO RESPOND. This feature is effective for saving power.