... alternative mobile power: 1. DC input: 5V , 1000mA 2. DC output: 5V, 1000mA 3. built-in battery: 3.7V,5500mAh 5500mA moving power supply with wifi ... .4. Without any external power, it can supply power for all the electronic equipments whose output is less than 5V, e.g. iPod, ... iPhone, PAD, mobile phone, digital camera, MP3, Mp4 and so on. 5500mA moving power supply ...