OCEAN SIGNAL ELECTRONIC FLARE 7 MILE RANGE,ELECTRONIC FLARE 7 MILE RANGE OCEAN SIGNAL,The world's most compact electronic distress flare, Light is also distributed throughout the hemisphere above the unit to ensure visibility from the air, The unique lens design combined with the use of advanced LEDs and highly efficient circuit technology ensures a constant level of light output throughout the life of the user replaceable battery.FLARE 7 MILE RANGE OCEAN SIGNAL ELECTRONIC.