Packing list:
1× Adjustable focus green laser flashlight
1× Rechargeable battery
1× User manual
1× Key

Operation instructions:
Install the battery, use thumb to press and hold switch, the adjustable foucs green laser flashlight begans to work. It will trun off after release

How to burn a match?
Let it shoot on the surface of a deep color or black object at a distance of 100mm to 150mm after opening the laser flashlight, then turn the screw to right with the smallest focal pointer that it's more easy to burn match within a short time.