Mophie Juice Pack Powerstation 2500mah Powerbank ideal for charging smartphones & USB Devices. With high current battery and electronics, this powerbank can charge your device at super-fast speeds. It has brains, beauty and brawn all in a compact size that fits in the palm of your hand – everything you’ve ever wanted from a travel companion. This 2500 mAh device is compatible with just about any micro USB device. The high-density, high-output battery charges at up to 1 amp output. That’s 2 times faster than traditional USB batteries! The juice pack features an outer metal band, four-light "invisible" LED status indicator, built-in short circuit, overcharge and temperature protection and improved conversion efficiency for maximum power transfer from battery to device.