As an all-round pointer tool, this device combines multiple functions such as laser pointing, infrared remote control, electronic page turning key and traditional whiteboard pen. Through this design, it completely changed the limitations of the single teaching method in the past, and made the whole classroom more lively, interesting and efficient.

For many people, it may be curious why they chose a green light source instead of other colors. In fact, compared with red or blue light beams, green light has higher visibility and penetration, and the projection position can be clearly seen under any light conditions. At the same time, after strict international standard certification, it is confirmed that this wavelength is completely harmless to human eyes, so it is very suitable for long-term use without worrying about health risks.

Not only that, this product can also be widely used in various occasions. Whether it is the daily teaching of the school or the scene of the internal training meeting of the enterprise, as long as the key information needs to be accurately marked, it is indispensable. With powerful adaptation capabilities and flexible settings, each user can make personalized adjustments according to their specific needs.

The realization of single-point long-distance projection actually contains complex optical principles and technological breakthroughs. The use of advanced semiconductor light-emitting diodes and high-precision lens group work together to ensure that each beam can maintain a stable and undeformed state within a range of hundreds of meters. In addition, in order to further improve the reliability, an intelligent temperature control system is added to prevent high temperature from damaging the components.

Many front-line teachers have also given favorable feedback. A senior Senior high school physics teacher said: "Since I started using this device, I have found that the students' concentration in listening to lectures has increased significantly, and the number of questions has also increased, because now I can accurately point out the key chart areas at any time to make it easier for them to understand and remember relevant knowledge points." Another university professor added: "Especially when explaining complex engineering drawings in a large amphitheatre, there is no need to worry about the back row of students not seeing the details clearly."