laser pointer pen xw-111

material : brass batteries :two AAA batteries color: black size : 14.6*1.3cm wavelength : 532nm power : 20mw distance : 1000M working voltage : 3V package :gift box carton size : 36*35*35cm 100pcs/ctn GW.:17.8kg NW.:17.2kg Instruction : The green laser pencan show bright green laser beam and can point at far -distance goals . The green laser beam is very beautiful at night . Further more , it can be equiped with four heads and every head can show one beautiful green laser image . It is popular in Party , KTV , barand other entertainment places . The green laser pen can be used in the followingcrowd : 1. Teachers/instructors . Remove out the head , it can be used in class teaching , it is like a unlimited extension pointer . Wherever you are in the classroom , you can point to the balckboard easily . It is really the right and the best assistant for the teachers . 2. Stargazers. Used in the astronomy to point at the star . Green laser pen shows a beautiful green laser beam . It is suitable for night sky , it can point out the specific location of the sky accurately . 3.Bussiness people /conference keynote speaker . For products demonstration and conference interpretation , let your communication with customers more relaxed and natural. 4. Outdoor travers/climbers/adventurers/ can be used to point at a long-distance goals, send out a distress signal , let your travel interesting and happier . 5. Museum /gallery /tourism commentator 6.The military command /exercise 7. Miners/construction workers point at the long-distance loacation accurately and avoid dangerous place . 8. Can be used in emergency ,such as earthquake , flood , fire and so on . Note : 1. Under normal temperature , the brightness can add the highest at the beginning .Continuous lightting can't exceed 30 seconds. 2. Laser is harmful to eyes , so please don't point to eyes directly . 3. Farm from children to avoid danger , remove out the batteries when you don't use the green laser pens .