The most obvious benefit to an adapter like this is when connected to a smartphone app it allows you to remotely turn USB-powered devices on and off without having to reach for a power button, or walk over and unplug them. But the adapter is also compatible with the Google Home and Amazon Alexa smart assistants, so you can turn things on and off with a simple voice command. Even more useful for those who use voice assistants but are concerned about privacy, Hackaday points out that Sonoff’s USB adapter could be used to set up timers to power off smart speakers and limit the hours when those types of devices are eavesdropping on your home.
Nice thing is it is standard USB so no wall plug adapters needed. Expected to ship from 15 Feb it should cost around $6.50 but you'd need one for each device if you want to control a few devices. The link below has a video showing it in use.
See This Cheap Adapter Makes Every USB-Powered Gadget Wifi Controlled
If you’re all in on the idea of making your home smart and automated, a company called Sonoff has created a simple adapter that will add wifi connectivity to any USB-powered device allowing it to be powered on and off without you ever having to lift a finger.
source https://gadgeteer.co.za/sonoff-smart-switch-wifi-control-any-usb-power-charging
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