Key features often include:
USB-Powered: Plugs directly into a USB port on a laptop, desktop, or other compatible device, with no extra power source needed.
Wireless Internet Access: Allows the device to detect and connect to nearby Wi-Fi networks so you can browse the internet, stream, or work online.
Plug-and-Play: Easy to set up — in many cases it works automatically when you plug it in, or with a simple driver installation.
Compact and Portable: Small and lightweight, so you can carry it easily and use it wherever you need wireless internet.