NOTICE!!! Manufacturer has started using unsupported non-ESP8266 chips recently and this device might not be compatible anymore.
You will also have to add the following commands in the console to make this work properly.
Backlog SerialLog 0; PowerOnState 0; SetOption63 1; LEDState 1 Rule1 ON System#Boot DO Power3 On ENDON # Turn the USB port on Rule1 1
The model purchased from Amazon 2020-03 has this GPIO Mapping
GPIO0: Green Center LED inverted GPIO3: Top Button GPIO4: Amber Top LED inverted GPIO5: Bottom Button GPIO12: Bottom Outlet Relay GPIO13: Top Outlet Relay GPIO14: Amber Bottom LED inverted GPIO15: USB Relay