Wireless keyboards connect to your laptop, desktop, or tablet without a cable. They can do this in 2 ways. There are wireless keyboards with a USB receiver or dongle that you put in the USB port of your device. Then there are Bluetooth keyboards, so you don't need a USB dongle anymore. Keep in mind that your PC needs to have a Bluetooth function if you want to use a Bluetooth keyboard. With wireless keyboards, you're not distracted by any cables and get to enjoy more freedom of movement.