Portable, ideal for travel. Easy operation and handy. Brand new and high quality. Color of LED indicator is blue. Ideal for travel, home or the office. High efficiency and low energy consumption. Provides standard USB 5V at up to 2.1A(max). Great for charging phones, cameras, MP3 players. Compact,light weighted and outlet plug changeable. It is used to charge multiple devices at the same time. Eliminates the need for multiple wall chargers and outlets. Compatible with iPad, iPhones and iPod and other USB device. Power and charge up to 4 USB powered devices with the proper USB cables. AC plug can be removed easily by pressing the button and pull out from the main unit. Four USB power ports charge up to four mobile devices simultaneously through just one wall socket.