Lifeline Energy (formerly Freeplay Foundation) is a non-profit social enterprise that provides technology solutions for off-grid learning. The organization designs, manufactures and distributes solar and wind-up media players and radios for classroom and group listening and was behind the first solar and wind-up radio for humanitarian use which launched in 2003. Since it began operations in 1999 more than 550,000 wind-up and solar powered radios and media players have been distributed, mainly in sub-Saharan Africa. Millions of listeners have been reached, as classrooms of up to 60 children or listening groups can use each radio or media player.