Outfitted with a large 3.4" wide lens and four bright LEDs, the Konus 2.5x Reading Magnifier helps you to see the small print on restaurant menus, books, cookbooks, and magazines—even in very low light or in the dark. You can use it handheld or simply stand it on top of what you want to read and slide it as you go. The magnifier LEDs run on two included CR2016 coin-cell batteries with a simple sliding on/off switch.