Featuresr 5 ports usb charger compatible for smartphone tablet bluetooth speaker mp3 mp4 and other mobile devicesr smart ic usb port automatically adjust the current with your digital devicer fast charging beyond you can expectr up to 5v 24a usb max single port workingr total power rating at 40w5v8a outputr short circuit over current over heated overvoltage protectionr come with good abs fire resistant and high temperature resistant materiar 15m long cable for convenient