On sale! (normally $49) The TP-Link HS100 2.4Ghz WiFi Smart Plug lets you control devices connected to the Smart Plug wherever you have Internet using the free Kasa app on your smartphone. 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. It also features an Away Mode which turns your devices on and off at different times to give the appearance that someone is home for added peace of mind.