... battery pack for iPhone, iPod, MP3, MP4, PDA, digital camera. Features:1. MPP-Tracker takes most advantage of solar ... memory effect6. Good security,reliability &Environment Recycling7. Effective power supply &Electric-saving function SpecificationCapactiy:3600mAh1.Output Voltage: 5V2.Output ... of mobile phone,iPhone ,PDA,ipod,MP3,MP4, digital camera and 5V devices that can be charged via USB cable.