The “smart Christmas tree” is here. It was bound to happen; Amazon is selling a voice-activated seven-foot LED tree dubbed "Mr. Christmas." It connects to the Alexa device so you can turn it on or off, set a schedule, and even switch up the lighting color all by command. The multicolored lights can be programmed for fading, twinkling and sparkling effects. As an alternate option to Alexa, there’s a remote built into the power cord. How easy is it to use? You just slide the tree sections together using the built-in power pole. Once it's plugged in, you can use your voice to get started. The tree sells for 300-bucks but is apparently so popular, it's now out of stock.