Zenith 2.1A Dual Ports USB AC Wall Charger charges most USB powered devices from an AC power outlet in your home; use with your existing USB charging cables to charge most USB powered devices. For use with Android, Blackberry, Kindle and other USB products. Output: 5V DC, 2.1A. Compatible with USB 1.0/1.1/2.0. Transfers data at up to 480 Mps. Wall plug comes with folding prongs for easy storage. Compact design with high quality black finish and comes with full 1 year limited warranty.