Specifications:Product name: 532nm Powerful Green Light Laser PointerColor: SilverSize: 15.5x2.2x2.4cm\/6.1!#!amp!*!quot;x0.86!#!amp!*!quot;x0.94!#!amp!*!quot;Material: AluminumBattery : 1 x 18650 battery (not included)Switch mode: Tail light switch ministersWavelength: 532nmStart time: !#!amp!*!le;3 secondsOperating voltage: DC3.7VBeam style: Continuous lineWorking temperature: 0 \u2103 ~ + 30 \u2103Storage temperature: -10 \u2103 ~ + 40 \u2103Feature:Aerospace aluminum alloy、 durable.Built-in laser module to improve the cooling device、 circuit boards gathering protection design.The laser beam is ly not allowed in front of the eyes of humans and animals.Portable photoelectric products、 changing the pattern of dots、 and can increase the Romantic places、 more fashion taste life、 starry、 green little is known stars、 is a modern city the best gift to share.Suitable for classroom teaching、 business people product demonstrations and lectures、 conference speakers、 museum、 outdoor travelers、 explorers、 sky observation enthusiasts、 leisure and entertainment.Package Include:1 x 532nm Powerful Green Light Laser Pointer  1 x Cloth cover