Specification: Product name: 301 Green Burning Laser Pointer Suit Model number: 301 Material: aluminum alloy Switch: touch switch Power supply: 1 x 18650(included) Light distance: 5000M-10000M Power: 1-200mw Focus mode: adjustable Light color: Green Laser Pointer USB Interface: Yes Output mode: Constant Wave Weight: 98g Color: Black Dimension: 15cm*2.3cm*2.3cm Li-ion Battery Universal Charger Input:AC110-220V;47-63HZ Output:3.7v/450mA Compatible battery : for 3.6-3.7V lithium battery, such as LIR123A, 18650, 14500 and so on 3.7V 18650 3000mAh Rechargeable Battery Red Battery Type: 18650 Rechargeable Battery No memory effect Environmentally friendly Voltage: 3.7v Capacity: 3000mAh(Maybe can not up to 3000mAh) Size: 65mm x 18mm Rechargeable times: Up to 1800 times Note: 1.This laser can only use 1pcs 18650 lithium battery,other battery doesn't fit it. 2.If the laser doesn't work,pls change the direction of battery,The cathode toward the inside. 3.If there is no light,please use the tail key,it's use to unlock the light of laser. 4.If you want to light the match,pls adjust the focal length. 5.Adopt fixed voltage control, charge light may turn green in advance for the high internal resistance or high voltage battery if you want to completely charge filled, can be placed the battery in the charger to charge for a few more hours. 6.When using a laser beam and definitely not in front of the eyes of human and animal exposure. Package included: 1 x Burning Laser 301 Green Laser 2 x Safety key 1 x 18650 Battery 1 x Battery charger