Keyuantai 3-port 22.5W 5V/4.5 Amp High Speed USB Wall Travel Charger with Intelligent Auto Detect Technology for Apple and Android Devices (Black) 3 intelligent USB port design: detects your device automatically to deliver its fastest possible charge speed up to 2.1 amps per port or 4.5 amps overall Wide input voltage range of AC100-240V, compatible to iPhone, Samsung ,Android and other USB devices. Multiple safety system: over-charging, over-heating, over voltage, over current and short circuit protection Ergonomic, compact and portable design, input voltage suits for international travel, much more space-saving and well-organized while charging your devices What You Get: Keyuantai 3-port USB charger, instruction manual