Specification Available Ship to:United StatesDetails Instruction 100% brand new high quality and perfect design. Actual photo shown,Simple and easy to use. Use your laser pointer to point at any desired targets on projection screen, video. 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.   How to use 1.Take out of the little plastic which is isolation if the battery was installed into of the laser. 2.Charge the battery first for 3-4 hours. The indicator of charger blinks red and green or just blinks red when the battery is in charge. The indicator of charger turns to green when the battery is in full charge. 3.Install the battery in the laser. Put the negative pole (cathode) into the laser first, that means leave the positive pole (anode) touching the end cap. 4.Install the end cap. Use the key to make sure it points to green. 5.After installing the battery and end cap correctly, press the power button to turn the laser on. Be aware of that you need to keep pressing the button to keep the power of it. 6.Rotate the head of the laser to change the focus. The more you rotate, the bigger the focus becomes.   Specifications Color:Green Power supply:1 x Battery(Included) Focus mode:Adjustable Body material: Aerometal Wavelength: 532nm. Power:1mw Beam style:Continuous line Spot size:6M place <φ10mm.> Working voltage:DC=3.0-3.7V. Preheat time: < 3seconds. Working temperature: +15℃～＋35℃. Storage temperature: -10℃～+40℃.   Package Includes 1 x Green Laser Pen 1 x Battery 1 x Smart Charger