Laser Pointer For Guitar What Level Of Power In A Laser Pointer Is Needed To See The Laser Beam?

What level of power in a laser pointer is needed to see the laser beam? - laser pointer for guitar

With a view to buying a laser pointer, but I want you to see where the laser itself. I want one that can go very far, but it is relatively inexpensive. You do not have burst onto the skin or bite balloons (although it would be great), but I wish you all a very real distance and the laser (see how the line).

Thank you: D