The Amazon Echo (2nd Gen) Smart Speaker With Alexa is a hands-free speaker that connects to Alexa Voice Service to play music, make calls, set alarms and timers, check your calendar, weather, traffic and sports scores, manage to-do and shopping lists, control compatible smart home devices, and more. It has a powerful speaker with Dolby technology that plays 360 audio with clear vocals and dynamic bass response. You can also use your voice to adjust equalizer settings or pair with another Echo (2nd Gen) for stereo sound.