PLUG AND PLAY: Our wireless keyboard and mouse are easy to use. Simply plug the USB dongle into your computer's USB port and install the batteries. This wireless keyboard and mouse combo is best used for connecting to any device. There is ONLY ONE USB DONGLE to connect both the keyboard and mouse. The USB dongle is located in the battery compartment of the keyboard. HIGHLY COMPATIBLE: We recommend this 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, 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 ready to replace your current keyboard and mouse. (1) Special keys for macOS, also compatible with Windows and Android. (2) Super long lifespan for keyboard and mouse clicks. WORK LONGER: Our wireless keyboard and mouse are designed for energy saving. 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 utilize automatic energy-saving technology, shutting off after 30 seconds of inactivity. There is no manual power switch. Simply press any key to wake it up. This is NOT a delay in response; it's a power-saving feature.