A wireless keyboard is a type of keyboard that connects to a computer or other devices without the use of physical cables. Instead, it typically uses Bluetooth or a USB receiver to communicate wirelessly. This allows for greater flexibility and mobility, making it easier to use the keyboard from a distance or in various settings. Wireless keyboards come in various designs and sizes, catering to different user preferences. They often feature rechargeable batteries or replaceable ones, ensuring long-lasting use. Many models also include additional features like backlighting or programmable keys, enhancing the overall user experience.