The Zeno Desk D7 Magnifier from Levenhuk is a desk-top device with dual optical lenses with magnifications of 2x for the main lens and 5x for the inset lens. The smaller, more powerful inset lens can be used to enlarge and see finer details in an object. The magnifier is designed for home use, but can fold down into a compact and portable handheld form. Under less than adequate lighting, 10 LEDs illuminate your object evenly. These can be powered by two AA batteries or with the included AC adaptor.