Very distracting in night time riding. Too visible and not in the "hear I am" type of way. Provide option to turn off. Most blue tooth headsets that employ such blinking lights have some mechanism to turn it off or on (and this is remembered in subsequent power cycles). The LED is only useful when setting up the device or initially turning on or off and helmet is not on (i.e. earbuds or speakers not near the ear). Should not remain during normal operation on the helmet.
Turn off the main, blinking LED during normal operation