Amazon Echo

Amazon Echo is a wireless speaker and voice command device from Amazon.com. The device consists of a 9.25-inch (23.5 cm) tall cylinder speaker with a seven-piece microphone array. The device responds to the name "Alexa"; this "wake word" can be changed by the user (to one other choice at present: "Amazon"). The device is capable of voice interaction, music playback, making to-do lists, setting alarms, streaming podcasts, playing audiobooks, and providing weather, traffic and other real time information. It can also control several smart devices.