The product adopts a PC fireproof shell, a fashionable and beautiful appearance, and is sturdy and durable. Nickel-plated process, stable transmission, after thousands of plugging and unplugging tests, still durable. Four devices charge at the same time, no more waiting in line. The output of the charging head is a USB port, which is mainly for regulating the power supply, providing stable working voltage and enough current to charge electronic devices. Does not take up space, is portable, and is easy to bring. The product is widely used in smart phones, tablet computers, communication equipment, digital products, instruments, etc., and can be customized according to customer requirements logo. chip upgrade, each process has strict control, and charging is safer.