I have used this little mirror many times in our survival training. The students are able to accurately signal with it given sufficient sun light. The reflection as stated will be seen for many miles, possibly even further than the 10 AMK says. The mirror is light and compact but is easily scratched once it is out of the packaging so some care s required when carrying it. A good product.
Adventure Medical Kits Sales Rep and Professional Adventure Racer Kyle Peter demonstrates the Survive Outdoors Longer Rescue Flash Mirror, a polycarbone signal mirror that includes a retroreflective aiming aid capable of sending a signal over 30 miles.