Mobile phone: Huawei mate40

System: MEUI 12.0

Software: Tianyi HD 5.5.4. 17

First, connect Tianyi HD to the TV set-top box. After the connection is completed, download the corresponding screen projection APP on the mobile phone, connect the mobile phone and the set-top box to the same network, open the APP, and click the main interface to project the video on the mobile phone onto the TV. China Telecom Group Co., Ltd., referred to as "China Telecom" or "China Telecom Company".

China Telecom, founded on April 27th, 1995, is a state-owned super-large communication backbone enterprise and a global partner of Shanghai World Expo, and has been selected as one of the "Top 500 Enterprises in the World" for many years. Mainly engaged in comprehensive information services such as fixed telephone, mobile communication, satellite communication, Internet access and application. The Chinese name of "Tianyi" is directly related to flying, wings and the sky, which embodies the free mobile experience and wide coverage.

Television introduction:

Television refers to the use of electronic technology and equipment to transmit moving images and audio signals, that is, television receivers, and it is also an important radio and video communication tool. Television was first invented by British engineer John Logie Baird in 1925. Television uses electricity to transmit moving visual images instantly. Similar to movies, TV uses the visual residual effect of human eyes to gradually change the still image frame by frame to form a visually moving image.

Television is a real-time media, which cannot be reviewed or watched repeatedly unless it is recorded, and online media has obvious advantages in this respect. It not only has the advantage that printed media can browse at any time, but also overcomes the shortcomings of poor timeliness, lack of classification and limited space, and becomes the database and classified information base of fleeting TV programs.