In actual teaching practice, the teaching rod can clearly indicate the position of the blackboard, especially the blackboard indicating high places. When applicants go to school, teachers often use single-function tools such as books and sticks, but such tools are due to their own attributes. , Is often not available for all teachers. With the advancement of teaching reforms and the introduction of multimedia technology, some new teaching rods, such as the use of laser pointers, greatly facilitate teaching. Existing teaching poles have complex telescopic structures and single functions, which will cause inconvenience in practical use. Most of the existing teaching poles are prototypes. When the teaching rod is extended, if the laser pointer is in the blackboard orchard in the classroom, it will affect the laser irradiation and reduce the intensity of the laser. Therefore, the laser pointer needs to follow the extension of the teaching rod. Long and changing its fixed position, the shape of the laser pointer is also a prototype, so a device is needed to hold the high powered laser pointer so that it can be placed after installation and disassembly.

The multimedia teaching laser pointer solves the inconvenient and easy to miss the problem that teachers need to bring USB flash drives, microphones, green light laser pointer and other devices in class; LED screen can display the time, which can solve the problem of teachers who are too focused on get out of class and forget the time of class. The laser pointer is equipped with a battery, a timer, a first wireless signal transmitter, and a wireless signal receiver. The wireless signal receiver and the timer are electrically connected to the LED display screen; the first wireless signal transmitter is compatible with the USB signal receiver The second wireless signal transmitter is adapted to the wireless signal receiver.

As a light-emitting tool for instructions, the laser pointer is designed to be a portable, easy-to-hold, pen-shaped transmitter that is processed by a laser module. It is widely used in various commercial and cultural exchanges. In schools, lecture halls or other commercial and cultural places, the laser pointer can accurately indicate the parts that need special emphasis through the red dot of the laser shot on the demonstration screen; in addition, The laser pointer communicates with the projection device through short-range wireless communication, and the page turning function on the laser pointer allows the speaker to perform PPT or other presentations without mouse clicks or other methods to operate, and can be anywhere in the space To proceed. It avoids that the operator clicks the mouse back and forth to affect the presentation effect, which brings great convenience to the speaker.