A pretty good product for a $18 price tag with a decent life.
Have been using one from past year and have had no issues. Can be used to turn on/off electrical appliances using TP-Link's Kasa app and integrate with Google Home/Siri using IFTTT.
Thanks to PriceHipster for the find.
It comes with these features:
Remote Access – Control devices connected to the Smart Plug wherever you have Internet using the free Kasa app on your smartphone.
Scheduling – Schedule the Smart Plug to automatically power electronics on and off as needed, like setting lights to come on at dusk or turn off at sunrise.
Away Mode – Turns your devices on and off at different times to give the appearance that someone is home.