Feature:5 Different special laser star field effects using included lens capsEach cap projects different constellation designs / patterns as you rotate itPerfect for astronomy and pointing out stars、 creating light constellations at home、 setting a romantic、environment、 parties、 and moreLength: 6"Wavelength: 532nm6 Styles: Straight laser beam + 5 different constellation patternsOutput Power: 1mWBattery: 2 x AAA batteries ( included)Laser Color: GreenBody Color: BlackPackage Contents:1 x Laser Pointer Pen (Battery included)Warning: Do NOT point laser at people. There is danger of physical harm if beam is shined into the eyes.Children should only handle lasers under adult supervision.