Wireless communications refer to the transfer of information between devices without the use of physical cables. This technology utilizes radio waves, infrared signals, or satellite transmissions to send and receive data. Common examples include Wi-Fi, Bluetooth, and cellular networks, which allow devices like smartphones, tablets, and laptops to connect to the internet and communicate with each other. The advantages of wireless communications include mobility, convenience, and ease of installation. Users can access information and communicate from virtually anywhere within the coverage area. As technology advances, wireless communications continue to evolve, enabling faster data transfer rates and more reliable connections, which are essential for modern applications like smart homes and IoT (Internet of Things) devices.