Color:Green Laser Pointer,Red Laser Pointer; Function:For Office and Teaching; Output:2; Wave Length Range:532nm-650nm; Wave Length:532; Shape:Pen Shaped; Material:Plastic; Power Supply:DC; Operation Voltage(V):3; Working Temperature (degree):10-40; Dimension(cm):18x2x2; Shipping Weight(Kg):0.055; Power:AA Battery; Package:Battery,Laser Pointer