Garmin Edge Remote Control

Drive your compatible Edge cycling computer without taking your hands off the handlebars.
The three-button Edge remote uses ANT+® wireless connectivity to mark laps and turn pages.
You can even program a third button from a pre-set list of functions.
Red and green LEDs indicate button press, pairing and sleep mode.
Its easy-to-change CR2032 battery lasts up to 1 year, going into sleep mode when not in use.
The remote control has both road bike and mountain bike mounts.