What you are viewing is a 5mw 650nm Red Laser Pointer & Page Up/Down Presentation Pen with USB Remote. This red laser pointer is suitable for professors, teachers, doctors, students and so on. You can use the laser pointer pen to point at any targets on projection screens, video monitors, or presentation graphics. With this laser presentation pen, you can point to the projection screen easily. With the pen shape design, this Laser Pointer Pen is very easy to carry and use. With the page up and page down function, you can easily turn to the different pages of your document by operating the three different buttons. With this red laser pointer, your teaching or lecture will be more wonderful and lively. Don’t miss this powerful assistant.