Roker&reg; 6.2A / 4-Port USB Charging Station /Portable USB Wall Charger / Travel Charger / USB Power Adapter for iPhone 5 5s 5c 4s 4; iPad Air Mini; Samsung Galaxy S4, S3, Note 3, 2; Google Nexus and More Latest Chipset for Rapid Intelligent Charging Technology, intelligently identify each connected device and speak its language - guaranteeing the fastest charge time for EVERY device (up to 8 Amps among 4 ports). Industrial-grade plastic construction and premium circuitry ensure lifetime reliability. Super portable Low footprint size and weight (3.2 x 2.6 x 1.6 inches ; 4.2 ounces),Best for trip or home/office usage AC 110-220V input voltage ideal for international travel. Retail package contents: Roker 4-Port Wall Charger, user manual.