How does Miracast work?

Miracast is a wireless display standard based on Wi-Fi Direct developed by the Wi-Fi Alliance in 2012. 3C devices that support this standard can share video images wirelessly, for example, a mobile phone can play video or photos directly to a TV or other device through Miracast without any cable or wireless hotspot (AP).


When two devices are directly connected, one acts as its source (the sending device) and the other acts as its display (the device receives and presents the content to the user).

With Miracast, you can watch content anywhere. Miracast works by sending content over Wi-Fi Direct, an innovation designed to enable direct communication between devices and perform exchanges at higher speeds than Bluetooth.

With this technology, data can be sent 10 times faster than Bluetooth, and data flow is important when you want to reflect what you’re doing on one screen.

When using Miracast on a mobile device or PC to send content to a TV, a Wi-Fi network is created between the two devices. After establishing this connection through your network, there is essentially no lag while the association between the two gadgets is valid. Everything you see on one screen can be viewed in real time on the other.

It allows you to send video at FullHD resolution or lower through the H.264 codec, and 5.1 includes sound. In addition, it supports WPA2-PSK encryption, which means that we can ensure that the information we send from one gadget to the next.