Amazon Echo is a new voice-controlled speaker that also doubles as your personal assistant.
Echo will respond to the wake up phrase of your choice ('Alexa'), at which point you can ask it just about anything. It can create shopping lists, set reminders and answer just about any question you throw at it. The device has seven microphones dotted around the speaker which mean you can talk to it from anywhere in the room without having to raise your voice.
It can hear you when you're sleeping. It knows when you're awake. It knows how to convert grams into stones. You can ask it "Alexa - play Kiss 100" and it'll play it.
But the real power of Amazon Echo is that it knows your credit card details. This is exciting but pretty scary stuff.