The laser pointer is a good assistant for teachers, trainers, experts, scholars, professors, lecturers and mobile business people. As an electronic pointer, red laser pointer can be widely used in schools, research institutes, government agencies, intelligence-intensive enterprises, training centers, hospitals, hotels, exhibitions, bidding, business exchanges and other occasions; laser pointers are widely used by teachers, trainers, experts, A good assistant to scholars, professors, lecturers and mobile business people. However, some functions of laser pointers in the prior art are not perfect. For example, some laser pointers are only used as electronic pointers and do not have the function of turning pages of ppt courseware or speech drafts being played. Some have the function of turning pages. It is necessary to use a cable such as a vga-hdmi adapter cable to connect it to a projector, etc., which makes it impossible to achieve long-distance use, and it also lacks the function of automatically turning pages or performing other actions based on the user’s voice. It is not conducive to the purpose of improving the efficiency and quality of information teaching.

Combine the laser 20000mw pointer with the existing voice technology, use voice recognition to open and close ppt, turn page control, specify to a page through voice technology, and open word documents, excel forms, and various types through voice recognition and voice control. A series of intelligent operations such as software and related web pages can also input related text through voice. The function tab key is used for Chinese input, and the function enter key is used for English input. It is suitable for teachers' speeches or teaching demonstration scenarios to improve the efficiency and quality of information teaching.

Burning laser is a kind of laser pointer 5000mw that can generate enough energy to actually burn something. It can be used to do things, such as lighting light paper, lighting matches, or even burning through objects such as rope or thin plastic. These are usually handheld and should be considered as potentially hazardous weapons. Although standard laser pointers should not be aimed at living things, especially the eyes of humans or animals, this is especially true for burning lasers. Even a brief interaction between someone’s eyes and this laser can easily cause permanent retinal damage, leading to blindness.