Press to turn the backlight on and off.

Press to turn the device on.

Hold to view the controls menu.

Press to view the activity list and start or stop an activity.

Press to choose an option in a menu.

Hold to view GPS coordinates and save your location.

Press to return to the previous screen.

Hold to view the clock menu.

Press to scroll through the widget loop and menus.

Hold to view the altimeter, barometer, and compass (ABC) screen.

Press to scroll through the widget loop and menus.

Hold to view the menu.