Specification:Features: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 absolutely an assistant for teachers.Business person / Conference Speaker ── product demonstrations and meetings explained， let your speech become capabiliable and with customers be more relaxed and natural.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 accuratelyField 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.Astronomy enthusiasts ── for astronomy star， red laser emitted beam is a very beautiful purple line. Be Well suited for observing the night sky and can accurately indicate the position of the stars.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 Visible Green Laser PointerNote:Please choose the power:1mw or 5mw when ordering