Green Laser Presenter ●Quantity: 1 ●Dimensions: 45mm (W) x 30mm (D) x 115mm (H) ●Weight: 75g ●Range: Approx. 200m ●Laser Color: Green ●Wavelength: 542nm ●Laser Output: Less than 1mW ●Beam Diameter (Spot): Approx. 12mm at 5m ●Batteries: 2 AAA batteries ● Battery life: Approx. 4 hours continuous use ● Compatible OS: Windows, Mac OS ※Please refer to the manufacturer's website for details. ● Compatible software: PowerPoint, Keynote ● Green dot projection ● Material: ABS resin ● Set accessories: 2 AA