Amazon currently has a pair of TanTan's WiFi-enabled smart plugs available for just $18.19 with the promo code APPBDHIR at checkout. That's a great price, that brings the price down from $25.99. It is also great since most WiFi-enabled smart plugs will sell for around $30 each. And for about half that price, you're getting two here.
These smart plugs from TanTan are pretty small ones, and won't cover up the second outlet on the wall, which is nice. These do work with both Amazon Alexa and the Google Assistant, so whatever you plug into them can be controlled with your voice. That means that if you plug in a lamp into one of these outlets, you can then say "Alexa, turn off the living room lamp" or whatever you decide to name that lamp. Additionally, there is no hub required with these outlets, everything it needs is built right into the outlet, which makes them even better. Like most smart plugs, these do only support 2.4GHz networks instead of 5GHz, and that's because 2.4GHz networks are able to cover more area than a 5GHz network, which makes it better for smart home products like outlets. This is a great pair of outlets to pick up for your home, and they are also very simple to get set up and start working.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $99/year (or $49/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.