... High power fixed focus green laser pointer Support temperature control,key switch,led indicator Visible laser diode Product name: 300mW ... Laser Pointer Model no.JL-051Feature:Portable laser,drived by batterySpecial safety design:on/off botton,key switchHigh power green laser pointer ... ,indicator,teaching baton,bars,ktv etc.Package contentGreen laser pointer,1.18650 battery,battery charger,safety keys 2 ...