[Interlock setting]after opening, only one channel is allowed to be in the open state, and other channels automatically close [Full open and full close function] The manual button and APP can realize all close or all open sockets and USB [Separate control function] Each USB can be individually opened or closed in the app [Portable Mini]Take It With You To Make Your Life Smarter. [Usb Smart Adapter Design]Compatible With All Your Usb Adapters And Usb Cables. Made Of High Heat-, Flame-Retardant And Material To The Safety Of Your Home, Weight: 0.15873282864 Pounds, Manufacturer: Hfgdnchva