Linksys via eBay offers the refurbished Belkin WeMo Home Automation Switch for iOS and Android for $19.99 with free shipping. That's $8 under the lowest price we could find for a new one now, although we saw it new for this price in December. The switch operates over WiFi and mobile Internet to turn electronics on or off from anywhere. It's compatible with smartphones or tablets running Android 4.4 and higher or iOS 9 and higher and works with Amazon's Alexa-enabled devices via voice control.

A 90-day Belkin warranty applies.