Signal Mirror Systems by Muth High Intensity Lights change ordinary exterior rearview mirrors into safety features that command attention!

When a turn signal is activated, a flashing high-intensisty LED chevron asterisk '*' appears in the corresponding side mirror to alert drivers in the "blind spot" of your intentions. When emergency hazard flashers are used, both mirrors flash warning signals. The mirrors function as conventional side-view mirrors when the signals or hazards are not activated.