Perfect pocket laser pointer for slide presentations, detailed scientific discussions, microscope projections, field studies, wall charts, and lectures. Provides a brilliant red light at the highly visible 630–680 nm wavelength with a beam diameter of 3.5 mm. Laser Class IIIA has an output power of 5 mW and a range of over 300 feet. Two AAAA batteries provide months of intermittent use or 2 hours of continuous use. Size is 1/2-inch diameter x 5-1/2 inches and weight is 1-3/8 ounces. Supplied complete with batteries and pocket clip. Replacement battery Cat. No. CON1113.