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 is best used to connect to any device. It uses ONLY ONE USB dongle to connect the keyboard and mouse. The USB dongle is placed in the battery compartment of the keyboard. HIGHLY COMPATIBLE: We recommend it for Apple iMac and Macbook, as its design is 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 SETS IT APART: We designed this keyboard and mouse based on your habits, quality requirements, and price expectations. 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. LONG WORKING TIME: Our wireless keyboard and mouse are designed for energy efficiency. The keyboard uses two AAA batteries and the mouse uses one AA battery. They can last up to 6 months. (Batteries not included). IMPORTANT TIP: This keyboard and mouse uses automatic power-saving technology, turning off after 30 seconds of inactivity. It does NOT have a manual on or off switch. Simply press any key to wake it up. This is NOT a delayed response keyboard and mouse. This feature is for power saving.