Echo Dot (2nd Generation) connects to Alexa, a cloud-based voice service, to play music, make calls, set timers and alarms, ask questions, provide information, check weather, manage to-do and shopping lists, control smart home devices, and more Just ask to play music from Amazon Music Unlimited (available in 30+ countries, subscription required) and TuneIn. Connects to external speakers or headphones through Bluetooth or 3.5 mm stereo cable. Use Echo Dot as a Bluetooth speaker to play music from your own collection or other services (requires Bluetooth connection from a compatible device, voice control not supported) Hands-free calling or messaging anyone who also has an Echo device or the Alexa App. Also, quickly connect to other Echo devices in rooms throughout your home using just your voice (coming soon). Controls lights, plugs, and other compatible smart home devices Hears you from across the room with seven far-field microphones for hands-free voice control, even in noisy environments or while playing music 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 Supported language: US English