ECCO, the Personal GPS Locator is simple to use. Push the "lock" button to store your location and be on your way. When you are ready to return, push the "return" button and ECCO will guide you back to your saved location from as far away as 9,999 miles. The blue LCD intuitive user interface displays an arrow and direction along with count down distance to your saved location. Colored LEDs provide additional visual feedback, with green indicating an active GPS signal and red indicating movement in a wrong direction. ECCO can store up to three separate locations at the press of a button.