ATTB 30W Pocket-Sized Smart Charging Dock with 4 USB Ports Desktop Wall Charger Charging Station with Built-in Stand and Auto Detect Technology For iPhone iPad Samsung Galaxy and Other Smartphones, Tablets Intelligent Balance Technology: Detects your device to deliver its fastest possible charging, Maximum output of 30W 6A with Smart IC provides power to charge 4 devices at the same time. ABS High quality outer shell and premium circuitry ensure lifetime reliability , universal 100-240 volt input ideal for international travel. Circuit protection: over-voltage protection, over-current protection, short circuit protection, overcharge protection, over temperature protection Unique dock station design, keeping your tablets or phones in position while charging. Charge almost any USB device- You can charge more than just your smartphone or table with this handy, multi-port adapter. It will also power up your e-reader, Bluetooth headphones, portable speakers and nearly any other device that charges with a USB cord.