You might know how to use it, but what's Alexa doing behind the scenes? Here's a quick primer on Amazon's voice technology.

Alexa+ isn't widely available yet. However, you might be able to get yourself early access to Amazon's AI assistant. Here's how to do it.

Amazon.com Inc has launched an initiative that would allow users to access its Alexa, Microsoft Corp's Cortana and multiple other voice-controlled virtual assistant services from a single device.