2.4GHz vs. 5GHz WiFi: What's the difference and how to use it?
KuWFi 5G Router WiFi6 1800Mbps Gigabit 2.4/5 GHz Dual Frequency High Gain Hybird+Mesh WIFI Router With Sim Card Slot Support APN
Linksys Official Support - The two types of dual-band routers
Why do most smart home devices use 2.4Ghz WiFi frequency band?
WIFI Jammers Beginners Guide - jammer4uk
Amazon.com: DIEWU AC1200 Wireless High Power WiFi Router Dual Band(5GHz+2.4Gz) Gigabit Wireless Internet Router Repeater with 4 * 5dBi High Gain Antennas 1200Mbps IPv6 Wider Coverage : Electronics