Not included Battery、thank you100% brand new high quality and perfect design.Use your laser pointer to point at any desired targets on projection screen、 video.With star cap it can show variable wonderful patterns at night. When take off the cap、 it is a single beam pointer pen.Across the sky、 allowing you to find the stars in the fan days you want the stars、 is the leader in the vast sky.Power saving、 lightweight、 suitable for putting in your pocket or handbags.This laser pointer can be used for presentation、 teaching indicator、 children amusement and more.This high quality laser pointer adopts the latest technology optics and microelectronics. Press-button switch at the  bottom、 no need to keep holding when use it.  Specifications:  Material:Aerometal Dimension: 150mmX28mmBeam style: Continuous line. Wavelength: 532nmPower supply :1 x 18650 Battery  (4000mAh). (No Battery!)Laser range: 8000meters.Laser Color: GreenFocus mode: No  Body Color: BlackWorking voltage:DC=3.0-3.7V. Waterproof: IPX67Preheat time: < 3seconds. Operating Temperature?+20・・?30・Weight?120g (only Laser pointer) Power: 5mw   Package? 1X Green Laser pointer 1X Star Pattern Converter  (No Battery!)   Friends? we have already put the star cap into the laser pointer for you? and please do not misunderstand、Thank you !        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.  The laser is bright! Even in normal temperatures and daylight it is recommended to limit it to 30 seconds or less per use to avoid heat buildup. Just like the laser pointers you use to play with your pets、 you should ALWAYS avoid direct eye exposure to laser beam.  You wouldn't stare into a very bright flashlight、 and you should not allow direct contact to anyone's eye (this includes your pets!  Love those little guys!)  Exposure to the eye can cause permanent damage、 so don't do it! Please keep this out of the reach of children. You have the responsibility to supervise the use of this laser.  When not in use、 it is always a good idea to remove the battery.  This is a good way to help ensure persons of an appropriate age do not have access to it.In some countries、 laser pointers such as this may be illegal to own and/or use (especially the higher powered ones). Therefore、 by purchasing these products YOU (the customer) accept all responsibly and liability to determine and fulfill the requirements and limitations of use or resale of these products in accordance with your country`s laws and regulations. In the event of resale、 you also agree to include this notation in the product description、 so that any potential buyer can also make an informed purchasing decision.