Specifications:Product name: Laser PointerMaterial: AluminumColor: BlackColor of light: PurpleSize: Approx. 23x168mm\/0.9"x6.61"Switch mode: click switchWavelength: 532nmStart time: ≤0.001 secondsRange: 2000 m (night person most visible distance)Operating voltage: DC3.7V with key protectionBattery: 1x18650 rechargeable batteryWeight: 60gFeature:-Aerospace aluminum alloy、 strong and durable.-With child safety lock when not in use can be the key to go to the red switch at the point of pull、 disconnect the power supply.-External focus、 easy to adjust the thickness of the light beam spot size.-18650 battery、 large capacity、 long life time.-Pre-switch、 press electricity、 loosen the easy to use power.-The import LD and accessories、 increase the service life of 10、000 hours or more.-The built-in laser module to improve the heat dissipation、 circuit boards gathering protection design (for domestic current laser excellent improvements board of defects).Package Included:1x 303 Laser Pointer1x18650 rechargeable battery1x EU Plug Charger1x Key1 x suitable adapter according to the country for the charger