Ready to function is the small device immediately. What I really like is that they do not exist here a cable, but the box plugged directly into the wall socket and is ready for use. A small LED lights up when the device goes online.
This device can easily be many different devices, such as iPhones, iPads, smartphones, mobile phones, tablets, digital cameras, MP3 players and other devices with 5V USB charging input voltage.
We use this device regularly and simultaneously charge up to 4 devices. I find the charging speed is very good, it takes no more than if I invite a single device with its original power cord. This box is very convenient, since you often like to load its devices at one and the same place, but there is usually not so many outlets available.
Let's come to a negative thing: The charger stinks initially terribly! It is almost unbearable, a really very penetrating odor. I'm really not sensitive, but with such a simple technical device like this here, this is not normal. One can not keep it in the box, it will lose after a few days the stench, the box I had to discard. Can not be healthy. Too bad.
Price / performance for this charger is fine. The build quality is decent, but not quality.
Conclusion: This charger can accommodate to charge 4 devices simultaneously. The box is small and compact. It works flawlessly. For the extreme stench I subtract a star, so extreme it should not happen. Otherwise recommended.