The laser pen is designed to be compact and lightweight, easy to carry and hold, and convenient for users to use anytime and anywhere. In addition to basic indication functions, some laser pens also integrate functions such as page turners and remote controls, which are suitable for various demonstration scenarios and improve the efficiency and convenience of demonstrations. There are various colors of laser pens available in the market, such as red, green, blue, etc. Users can choose the appropriate color according to their actual needs. Laser pens of different colors have differences in visual effects and applicable scenarios.