Monoprice Select Series Portable Cell Phone Charger for Universal/Smartphones, 10,000mAh Power Bank, Black Select Series Power Bank - Monoprice's Select Series Power Bank provides the power you need to keep your devices charged on the go. Status LEDs show the charge level at a glance and indicate when the Power Bank is charging and how much charge it has left. A built-in LED flashlight provides emergency illumination when needed. Fast Charging for Up to Two Devices - Each port charges your device at full speed, just like your home charger. There are no buttons to push--simply plug in your device and the Power Bank starts charging. Once you're finished, the device shuts down automatically. Overcurrent Protection - Built-in overcurrent protection prevents any device from accepting any more current than it can handle, keeping your valuable devices safe.