Fast Charging Portable Power Bank Built-in large capacity battery, small, portable, wide application range, long service life. Can be used to charge cell phones, digital cameras, palmtop computers. MP3, MP4, and iPad. Charging on the go, listen to music, watch movies, play games and no longer worry about power shortage problems. I sell a lot of these in my store. Very popular. This is new, in the box. I only took it out to take the pictures.