You must have seen laser pointer in your daily life. Today we are glad to offer this LT-WJ03 5mW 532nm Professional Green Light Laser Pointer Pen to you. Made of top quality material， it is durable for long-term use. It is easy to operate. Only need to push the button， and then you can see striking green light shoot forth. Besides， the light can point at any targets， such as photos， blackboard， video monitors and so on. Except that， it is perfect for teachers， professors， doctors， managers， engineers and so on. Most of all， powered by battery， it could provide you with long service time. Take one back home!                                    Features            Made of high quality material， it is durable enough for long time usingEasy to point at any targetIt can offer a wide and clean view from the farPerfect for teachers， professors， doctors， managers， engineers and so onPower saving， compact and reliableSimply press the button to activate the laser pointer and release it to deactivateIt’s more convenience that uses laser point to the target instead of hands                                                            Specifications             Wavelength     532nm    <br> Output Power     5mW    <br> Light Color     Green    <br> Working Temperature     20 ℃ ~ +35 ℃    <br> Storage Temperature     -20 ℃ ~ +60 ℃    <br> Working Voltage     DC 3.7V    <br> Power Supply     2*AAA Battery    <br> Body Color     Black    <br> Lifespan     ≥5000 hours     <br>                                                             Package Includes            1 x Laser Pointer Pen                                                            Extra Info            Note: Don′t allow the laser beam to enter the eye. The laser beam is harmful to eyes， any contact will cause permanent damage. Not the laser point to the crowd， especially in the face.Don′t look directly with your eyes or using binoculars and other equipment to observe the laser beam on the remote control. Never let the laser point to a mirror or other highly reflective surfaces.Please keep the laser pointer away from children (especially the high powered ones) in order to avoid the damage by the children′s contacting.Please don′t light laser pointer continually in 30 seconds and press the button hard， it will affect its lifetime for prolonged use.Please remove the battery from the laser pointer when not in use.Need to disassemble， adjust or repair， please get professional maintenance technicians.The use of laser pointers (especially the higher powered ones) may be illegal in some countries. Therefore， customers can buy and use it by following the local laws and regulations. In the event of resale， you also need to incorporate this notation in the product description， so that any potential buyer can be well informed before making purchasing decision.