This is a 5mW Laser Pointer Pen, whose full name is 5mW 650nm Ultra Powerful Red Laser Pointer Pen. It is an ideal gift for Office/School presentation. As a low powered green laser pointer pen, this 5mW Laser Pointer Pen is at a frequency of 650nm. And made of high quality metal, it is durable for a long time use. What's more, you will be amazed at its power! You can use the clip laser presenter pen to point at any desired targets on the project screens, video monitors, presentations and inspection. It is the right choice for astronomers, teachers, lecturers, engineers, construction workers, security, professionals, outdoorsmen, etc.. With a high power beam output, this 5mW 650nm Ultra Powerful Red Laser Pointer Pen is your best choice.