Features: 5 Ports USB charger, compatible for smartphone, tablet, BT speaker, MP3, MP4 and other mobile devices. Smart IC USB port, automatically adjust the current with your digital device. Fast charging, beyond you can expect. Up to 5V 2.4A / USB max single port working. Total power rating at 40W/5V/8A output. Short-circuit, over-current, over-heated, overvoltage protection. Come with good ABS fire-resistant and high temperature-resistant materia. 1.5m long cable for convenient to use, suitable for home, office, travel, etc.