Best 5 Mile Range 532nm Green Laser Pointer Light Pen Visible Beam High Power Lazer Pen
With a star cap it can show variable wonderful patterns at night. When you take off the cap, it is a single beam pointer pen across the sky, allowing you to find the stars.
Output Power: <1mW
Power supply :1 x 18650 Battery (4000mAh).
Laser range: 8000meters.
Laser Color: Green