Two USB outputs and a good load capacity

This portable charger rectangles (14cm about 5.5 cm) is quite light for its size.
He charges through USB and comes with its charging cable and a carrying case.
The device is equipped with two USB outputs iSmart automatically adapt to connected devices.
When reloading, small white LEDs appear, flashing slowly to indicate the current charging. When the LED 4 are on and steady, the battery is full. They emit a very weak light, a good point to use the device during sleep for example.
An ignition button is used to check the level remaining on the battery.
In use, no need to turn it on, the charger automatically detects the connected device and starts charging. It also switches off automatically once the load.
This charger is especially convenient when traveling or on the go because it can charge two devices simultaneously, and several times each. Furthermore, it seems quite robust.