Laser pointer (too?) Powerful, less suitable for indoor use, outdoor perfect

This laser pointer is very powerful. Probably too for indoor use. But outside, it is very convenient. So, the night he used to mark a point on a building facade at over a kilometer at night in town. Similarly, many see the ray laser at night, facilitating the score of the sky and stars.

A big flaw, however, provides a loose contact with the batteries (a pair is provided; Format "Remote Control"), especially when the pointer is up; Furthermore, the hardness of the push button to turn it on, not allowing intensive use.