Wireless Internet, often referred to as Wi-Fi, allows devices to connect to the Internet without physical cables. It uses radio waves to transmit data between a router and devices like smartphones, laptops, and tablets. This technology enables users to access the Internet from various locations within the range of the wireless signal. Wi-Fi networks are commonly found in homes, offices, and public places such as cafes and libraries. They provide convenience and mobility, allowing multiple devices to connect simultaneously. The speed and reliability of a wireless connection can vary based on factors like distance from the router and interference from other electronic devices.