Dual-frequency wifi means that the device supports 2.4GHz/5GHz dual-band wireless signals at the same time, and can support a complete wireless network that includes 802.11a/b/g/n, which belongs to the fifth-generation of Wi-Fi transmission technology (5GWi-Fi), and is usually contacted by the router or some Wifi devices are 2.4Ghz Wifi support, as long as some high-end routers or some future tablets, boxes and smartphones may be able to use this newer generation of wireless technology.
The advantage of dual-band Wifi devices is that they have stronger and more stable Wifi signals, higher transmission speeds, and allow wireless devices to save power and meet the future demand for high-definition and big data wireless transmission.
It supports two different frequency bands at the same time, which are 2.4G and 5G, and supports 802.11a/b/g/n/ac technology, which belongs to the fifth generation of wifi transmission technology. At present, most of the wireless products are using a single frequency 2.4Gwifi wireless transmission, such as wireless mouse, keyboard, USB wireless card, ordinary wireless router. Some high-end smart devices support dual-frequency wifi technology, such as some cell phones, tablet PCs, high-end wireless routers, and so on.
The benefits of dual-band wifi
The 2.4G band has more devices, with relatively good penetration and relatively long coverage distance. However, there are too many 2.4G devices, and the average number of 2.4G APs (Wireless Access Points) around a home environment that can be searched is now more than 5 per household.
The 2.4G environment is getting noisier and more interfering. 5G has cleaner channels, faster rates, and with the same amount of data being transmitted, 5G will be more power efficient and have a better user experience.
5Gwifi is more stable than 2.4Gwifi. Because 2.4G has only 3 channels that don't interfere with each other, while 5G has 22. To put it in a better way, the 2.4G wifi band is like a three-lane road, and the rate of cars passing through is low and easy to be blocked. 5G is like a 22-lane "super road".