... 4W 6V Folding Flexible Solar Panel Charger for Mobile Phone, MP3, MP4 Power 4WOperating voltage6VOperating current0.66AWeight210gSize560*215mm Encapsulating materialWaterproof ... equipment, small power testing instruments, portable power supply, radio, MP3, mp4, moble phoneSuitable for consumer groupsgift, outdoor sports, cross ... 6V Folding Flexible Solar Panel Charger for Mobile Phone, MP3, MP4