Get maximum compatibility and charging speed for multiple USB devices at the same time by using the USB Travel Wall Charger Adapter from Aukey. It comes in both 3-port and 4-port versions with AIPower technology that has a TI chip inside to detect the appropriate input current for the connected device at a time. So, be it your iPhone, iPad or digital cameras, you can now charge your devices from your existing USB cables. There’s an LED to confirm whether the charger is properly connected to the wall socket. The circuit design is safe and reliable so that your devices stay protected from overheating, overcurrent and overcharging as well. Charging will automatically stop when the battery is full. A pretty useful charger adapter for the modern tech-savvy generation.