If you're looking for Black Friday deals for the whole family, the Google Chromecast is a great deal. It's even cheaper with this killer Chromecast Black Friday sale.

Right now, the Google Chromecast 3rd generation is on sale at Walmart for $18.98. This sale is likely to sell out, so get it while it's hot! Great device at a great price. (Plus, these easy-to-use dongles make great stocking stuffers.)

In our review of the Google Chromecast 3rd generation, we touted this wireless dongle as one of the best streaming devices you can find for cheap. The latest model is nearly identical to the second-generation Google Chromecast, but you'll notice a welcome performance boost in the former. (The Chromecast is a circular dongle with a 2-inch circumference that attaches to the back of your TV. It has a built-in HDMI cable on one side and a micro-USB power port on the other. (The Chromecast comes with both a micro-USB cable and a power adapter, but unless you have a very old USB-less TV, you probably won't need the latter.)

The nice thing about Chromecast is that the casting functionality is built into Google's audiovisual apps: if you want to show Google Photos on your TV, listen to Google Play music, or view the Google Play Movies & TV library you want to show, all you have to do is open the app and press the cast button.

Times are changing, but you can still get smart home technology without spending a fortune. Looking for other wireless upgrades? wi-fi enabled devices are plentiful on our Black Friday Deals page.