4-Port USB 2.0 Portable Multi-Purpose Charger w/5Ft Power Cord (USB-CHARGE-HUB-4)Great for traveling, small and light. You just need to carry this and cables for your devices, no need to carry different AC Adapters for each device. Only 3 1 2" in length. Features Specs: World voltage acceptance 110~240V AC with High Power, Output 5V 2. 1A (10. 5W) 4 USB power ports charge up to four mobile devices simultaneously through just one socket , eliminates the need for multiple chargers and outlets ON or OFF power switch on the usb