Solar product, Flashing function without battery, Good for advertising as Logo can be customize, Hot item for Year 2011 Solar Key Chain - Apple ShapeFlashing Mode without the use of Battery. ONLY THROUGH SOLAR TECHNOLOGYDimension: 65x60x7 mm LOGO can be customizePrefect for advertisingFeatures: Keychain, advertisingHot product for YEAR 2011Environmental FriendlyNew Technology for Solar product ...