1. Wireless projection: Wireless projection refers to cross-platform wireless projection of the screen of a handheld resource production terminal without using third-party screen projection equipment such as Miracst or AirPlay, and without any setting and switching.

2. Teachers and students in the TalkSmart classroom are connected to the same network. The teacher clicks "Start Same Screen" on Chang Yan's desktop to connect the big screen.

3. With the help of computer software, you can realize the function of the same screen and interact with students in class.