A travel router is a compact device that allows users to create a secure Wi-Fi network while on the go. It connects to existing internet sources, such as hotel Wi-Fi or public hotspots, and shares that connection with multiple devices like laptops, smartphones, and tablets. This is especially useful for travelers who need to connect several devices without relying on potentially insecure public networks. In addition to providing internet access, many travel routers come with features like a built-in firewall and VPN support, enhancing security while browsing. Some models also include USB ports for charging devices, making them versatile tools for modern travelers who want to stay connected safely.