The ILL+ Solar Powered GPS Longline Buoy is a fully autonomous system designed to transmit consistent and accurate GPS positions. Fishing gear and lines can always be located and tracked based on the attached buoy GPS position with no limitation on drift distance. Buoy GPS positions are received onboard your vessels computer, via email or an optional direct satellite connection antenna (IDP Communicator). The positions can also be copied to your office and sister ships. There is no need to purchase or replace batteries as the life of the solar powered energy system is nearly unlimited.