... pen:Black rubber paintWorking temperature:0~+30Range of the laserOver 500-8000metersDivergence angle:0.8-1.2mradBateries:AAA*2pcsBeam diameter:1 ... : 5mw,10mw,20mw,30mw,40mw,50mw,100mw,200mW Beam distance: 500 to 6000m Working voltage: 3.2V DC Trigger voltage: 2 ... the military, medical and astronomy, indicator, and teaching baton 1 mw,10mw,20mw,30mw,50mw,100mw,200mw,300mW,350mW,400mW,500mW ...