Dual band is the capability of wireless routers to transmit on the 5 GHz band and also the 2.4 GHz band. Unlike other wifi routers that only support one signal band,dual-band routers contain two different types of wireless that can support both 2.4 GHz and 5 GHz connections.
Dual-band router support both bands (2.4GHz and 5GHz) and provide faster speed and flexibility. Therefore, the dual-band router avoids connection issues or interferences and offers more stability. The dual-band can also reach a signal up to 100x the wireless bandwidth.