Suitable for offices, not to outdoor use

As I said, inside the laser pointer can be used probably good for presentations because he does what he should, in a darkened room, he creates problems 12 meters. If the room is a little lighter, the distance is halved quickly.
Outside you can forget about the laser completely, since he manages noon (cloudy) not even one meter, for 1 star deduction. One of the tasks that I had it was for the laser to point to points of buildings (eg inscriptions of churches and historical buildings, etc.) this is the laser completely unsuitable. "Presentations of any kind" - No!
Another shortcoming is the processing. The push button of the laser is already very shaky upon delivery, I agree with other reviewers that you better not keep the device in your pocket!

Positive on the pointer is definitely the AAA battery, which is considerably more user-friendly than the method with 3 button cell batteries. You can insert the battery lighter (with - pole into the instrument, + upwards), use longer and it does not cost so much - I like that.

Conclusion: For a fun for pets or presentations on the map / PowerPoint ok if the room is darkened, not suitable for professional work or in large lecture halls!