Color:Green Laser Pointer; Function:For Outdoor Sporting,For Office and Teaching,For Astronomers; Output:2; Wave Length Range:532nm; Wave Length:532; Shape:Pen Shaped; Material:Aluminum Alloy; Power Supply:DC; Operation Voltage(V):3.7V; Working Temperature (degree):10-40; Dimension(cm):15x2.3x2.3; Shipping Weight(Kg):0.098; Power:18650; Package:Battery,Power adaptor,Laser Pointer