Echo Dot is a voice-controlled speaker that uses Alexa to play music, control smart home devices, make calls, answer questions, set timers and alarms, and more. Play music from Amazon Music, Apple Music, Spotify, Pandora, SiriusXM, TuneIn, and iHeartRadio. Call or message family and friends hands-free, or drop in from the Alexa App to your Echo device. Controls lights, locks, thermostats, and more with compatible connected devices.