Specifications:Color:Green Laser Pointer, Red Laser PointerFunction:For Office and TeachingOutput:5Wave Length Range:532nm-650nmWave Length:532Shape:Pen ShapedMaterial:PlasticPower Supply:DCOperation Voltage(V):3Dimension(cm):18x2x2Shipping Weight(Kg):0.055Power:AAA BatteryFeatures:Appearance Finish: black anodized Switch mode: touch switch Battery: 2xAAA Wavelength: 532nm Power: 1-200MW Range: 500-10000 meters (the greater the power, the more long- range) Start Time: ≤3 seconds Operating voltage: DC7.4V Optimum operating temperature: 15 ℃ ~ + 35 ℃ Spot diameter: 6M≤Φ10mm Fixed focal length, point-like spot focus function continuous output 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.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, 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. 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:1 x 532nm green Laser Pointer 2 x AAA Batteries1 x Star Cap