PLUG AND PLAY: Our wireless keyboard and mouse are simple to use. Just connect the USB dongle to your computer's USB port and install the batteries. This wireless keyboard and mouse set uses the easiest connection method for everyone. It's ONLY ONE USB DONGLE to connect the keyboard with the mouse. The USB dongle is located in the battery compartment of the keyboard. WIDE COMPATIBILITY: We recommend it for Apple iMac and Macbook, as it's designed 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 DIFFERENT FROM OTHERS: We design this keyboard and mouse based on your habits, quality requirements, and expected price. It's a complete replacement for the keyboard and mouse you are currently using. (1) Special keys for macOS, also compatible with Windows and Android. (2) Super long lifespan for the keyboard and mouse. WORKS FOR A LONG TIME: Our wireless keyboard and mouse utilize an energy-saving mode. The keyboard uses two AAA batteries, and the mouse uses one AA battery. They can support up to 6 months of use. The package does not include batteries. IMPORTANT TIP: This keyboard and mouse use automatic energy-saving technology, which can turn them off after 30 seconds of inactivity. There is no manual power switch. Simply press any key to wake them up. This is NOT a delay in response; it's an effective power-saving feature.