Orion Signaling Mirror This signaling mirror is constructed with durability in mind and can stand up to the corrosive effects of saltwater. This mirror comes with a viewfinder and lanyard. This signaling device has a visibility up to 10 miles. Signaling Mirror Usage In the case of an emergency and you need to use your signaling mirror, follow these instructions. Place the lanyard around your neck and hold the mirror in one hand. With the mirror at eye level and the face halfway between the sun a