Type:Green Laser PointersBrand Name:laser pointersSize:150x22x22mmFunction:Teaching stick， Long distanceBattery:18650 Battery / 16340 BatteryControl Distance:2000-5000 metersModel Number:green laser pointersLaser Color:GreenWave Length:532 nmFull Set:Laser Pointer + Battery + Charger + Star Filter Cap + Safe Keys SHAZIXIUTAOGuangjie