?Specification:Features:1.Fixed focal point、 the light beam continuous shootout、 we provide various patterns (6 patterns correspond with 6 different laser light patterns)2.Pen-shaped design、 lightweight and elegant! Easy to use built-in lithium battery USB charging.quite convenient and easy to take in daily use3.Fine copper made、 rubrones surface treatment、 feeling comfortable4.Foot power、 clear and bright beam of light at night、Light distance up to 5kmFunction:1.Teacher / lecturer ?? for classroom teaching、 it is like a pointer infinite、 at any corner of the classroom U can easily refer to the planning board and be ly an assistant for teachers.2.Business person / Conference Speaker ?? product demonstrations and meetings explained、 let your speech become capabiliable and with customers be more relaxed and natural.3.Museum / Exhibition / tour guide ?? When you are in the face of "tentacle difficult" and do not know what the objectives of the beam、 it can help you indicate target easily and accurately4.Field travelers / explorers ?? for outdoor adventure、 indicating distant targets and a distress signal issued.It is the preferred equipment to Make your trip more interesting for outdoor activities.5.Astronomy enthusiasts ?? for astronomy star、green laser emitted beam is a very beautiful green line. Be Well suited for observing the night sky and can accurately indicate the position of the stars.6.Mining Field / construction workers ?? for remote accurate indication / measure buildings. Avoid approaching the danger zone. Allow u command spot outside thousand meters like your sight.Package included:1 x 532nm Green Laser Pointer5 x Pattern1 x USB Line1 x Box