Backward compatibility with wireless signals in 5GHz band and wireless WiFi signals in 2.4GHz band. The transmission speed of wireless signal in 5GHz band is faster, the signal is more stable, and wireless devices are more energy-saving.
WPS is a function to help new devices connect to WIFI quickly. There should be a WPS button behind the router. After turning on the WPS function, click the WPS button, and then click "WPS Connection" on the device that needs to be connected to WIFI. WIFI will be automatically connected in a few seconds.