"What's in your home, always on, ready to listen to you and constantly adapting to the way you talk? Why, it's Amazon's Echo speaker. Think a less portable Siri or Google Now, but hands-free."

"Are you ready to bring an eavesdropping device that's connected to the cloud into the privacy of your abode?"

"Here's how Amazon describes Echo on its site:

'Amazon Echo is designed around your voice. It's always on—just ask for information, music, news, weather, and more. Echo begins working as soon as it hears you say the wake word, 'Alexa.' It's also an expertly-tuned speaker that can fill any room with immersive sound.'"