Hello; Do theoretical training on the mobile phone, and any browser can see the video; I suggest you use your mobile QQ browser. Its installation package is only 4m, which can save a lot of traffic for future upgrades and surfing the Internet. You can set several commonly used software on it; Things in QQ browser can be changed at will; And its page is clear and natural; Not ambiguous at all; It is also very comfortable to look at; Mainly smooth operation, no memory occupation, multiple functions and good compatibility; Compatible with computers and mobile phones with various configurations; It also supports all kinds of networks, mobile. Unicom, telecommunications and other networks can be; Thank you for your adoption.