Good News:  1 Chargeable Battery And Charger As A Gift Included Now!\u3011 Brand New Green LaserSpecial feature : the green laser spot size is adjustable、 the range is from 0 to 60mmKey lock switch to prevent miss-use by other peopleIt can be operated by One CR123A battery or One 18650 batteryGreat for pointing objects from long distance、 such as starsExtremely Visible green light beam in the darkRange in excess of 6、000 ftPower saving、 compact and reliableCuts thin plastic (tested with thin plastic bagsWave Length: 532nmOutput wave: Continuous wavePower by 1x 18650 Battery (Not includedLength: 160mmDiameter: 160mm\u00d722mm\u00d722mm\"Weight: 3.5 ozPackage include: 1 laser pointer 303 1 star head 2 Safety lock key