With simultaneous dual-band WiFi repeaters, two frequencies can be transmitted simultaneously via the WiFi repeater. This allows you to use both the 5GHz and 2.4GHz network. Do you choose a dual-band WiFi repeater with mesh? The WiFi repeater constantly communicates with your router for the best internet signal in a larger part of your house. This way, you extend the WiFi signal in your house to an extra room and, for example, you also go online in the bedroom or utility room.