Amazon Echo Dot

Uses the Alexa Voice Service to play music, provide information, read the news, set alarms, control smart home devices, and more using just your voice
Connects to speakers over Bluetooth or with the included audio cable to play music from Prime Music, Spotify, Pandora, iHeartRadio, and TuneIn
Includes a built-in speaker so it can work on its own as a smart alarm clock in the bedroom, an assistant in the kitchen, or anywhere you might want a voice-controlled computer
Hears you from across the room with far-field voice recognition, even while music is playing
Controls smart home devices like lights, switches, thermostats, and more with compatible connected devices from WeMo, Philips Hue, Samsung SmartThings, Nest, ecobee, and others
Always getting smarter and adding new features and skills