PLUG AND PLAY >>> Our wireless keyboard and mouse are easy to use. Just plug the USB dongle into the USB port on your computer and install the batteries. This wireless keyboard and mouse is used in the best way to connect to everyone. There is ONLY ONE USB DONGLE to connect to the keyboard with the mouse. The USB dongle is placed in the battery compartment of the keyboard. WIDE COMPATIBILITY >>> We recommend it for Apple iMac and Macbook. Because it is based on the macOS user's habit to design. Our wireless keyboard and mouse are also compatible with Windows computers or Android tablets TV boxes. iMac models: A1244 A1225 A1311 A1312 A1418 A1419 A1862 Macbook models: A1424 A1398 A1435 A1436 A1502 A1425 A1465 A1343, A11904, A1274, A128, A128, A128 A1224, A1172, A1278, A1330, A1342, A1344 etc. WHAT IS THE DIFFERENCE WITH 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 you are using. (1) Special keys for macOS and also compatible with Windows and Android, (2) Super long life for keyboard and mouse presses. WORK LONG TIME >>> Our wireless keyboard and mouse are used to save energy. The keyboard uses two AAA batteries, and one AA battery for the mouse. They can support up to 6 months. The package does not include the battery. Important tip >>> This keyboard and mouse uses the automatic energy-saving technology that can turn off by itself after 30 seconds, when you have not used it. It does not have the power switch to turn on/off manually. Just press any key to wake up. This is NOT the keyboard and mouse DELAYED to RESPOND. This feature is to save power.