Solar mobile charger for MP3, MP4, mobile phone,Solar Charger Key chain Solar mobile charger for MP3, MP4, mobile phone,Solar Charger Key chain Product ... in battery by solar time :10-15 hours;By computer or AC adapter to the built-in battery charging time ... * 31 * 8mm;Weight 40gSpecifications1, ABS material. 2, suitable for MP3, MP4, mobile phone; 3 The United States imports a single silicon ...