Qc 3.0 Usb Port That Can Be Used With Different Connectors To Meet Various Needs. Anti Intereference Of Electron Magnetic Design, Ensure Of The Sensitive-Ness Of The Touch Screen. Over Load And Short Circuit Protection Ensure Safe Usage. Worldwide Voltage, Suitble For Whole World. Fashionable And Portable Design. Suitable For Smartphone, Pcs, Tablet, Iphone, Ipod, Ipad,, Other Mobile Phones, Other Usb Device Like Mp3/Mp4 Players Or Portable Speakers & Headphones.