The High-Speed 2-Port USB Wall Charger From ANKER, America's Leading USB Charging Brand - Faster and safer charging with our advanced technology - 20 million+ happy users and counting Fast-Charging Technology Anker's exclusive PowerIQ and VoltageBoost combine to ensure the fastest possible charge. Ultra-Powerful 2 ports pump out 24 watts of power, enough to simultaneously charge two iPads at full speed. MultiProtect Safety System Surge protection, short circuit prevention, temperature control and more keep you and your devices safe. 12 / 24 volt input. Incredibly Compact Compact design with foldable plug makes PowerPort 2 one of the most portable dual-port USB chargers on the market.  LED Indicator Light Green lets you know your device is plugged in and charging. Blue means fully charged or idle. Worry-Free Warranty At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support. For Optimal Use: • Use your original cable or a third-party-certified one (such as MFi). • Compatible with Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices except for the iPod nano / Classic / Shuffle, HP TouchPad, Dell Venue 11 Pro and Asus tablets.