Wireless screen mirroring system

A wireless screen mirroring system, comprising:

• a first transmitting device and a second transmitting device;
• a first receiving device and a second receiving device;
• a router, having at least one of the functions of a controller or a bridge, wherein the router selects one of the first transmitting device and the second transmitting device as a designated transmitting device, and selects at least one of the first receiving device and the second receiving device as a designated receiving device based on a configuration file, and the router pairs the designated transmitting device with the at least one designated receiving device;
• wherein after pairing is completed, the designated transmitting device displays audiovisual data, transmits the audiovisual data to the at least one designated receiving device, and the at least one designated receiving device displays the audiovisual data;
• wherein by utilizing the configuration file, the router designates one of the first transmitting device and the second transmitting device as the designated transmitting device, and designates the first receiving device and the second receiving device as the designated receiving devices, so that one transmitting device is paired simultaneously with two receiving devices.