Wireless router. A wireless router is a device that connects to your internet connection. It allows shared access to the internet from multiple devices. It also enables your home to become a wireless hot spot for internet. Wireless devices that can connect to Wi-Fi is the last necessary component to setting up wireless internet. In order to use Wi-Fi on these devices, it is simple – just turn on the Wi-Fi connectivity, find your network that you just set up and connect to it.