XtremPro Portable External Battery Charger Bank Ultra Aluminum Surface Slim 5000mAh Portable External Battery for iPhone, iPad, Samsung Galaxy, MP3/MP4, PSP, NDS - Silver (41036) High capacity of 5000mah, Quick Charge. The hidden LEDs display remaining power. Aluminum surface, Slim, and compact design. Effect as iPad, iPhone, Samsung, Google, Mobile Phone, MP3, MP4, PSP/NDS etc Multiple safety protection systems to ensure devices safety: protection for overcharge, overvoltage, overcurrent, and short circuit.