A Certified Refurbished Echo Dot (4th Generation) is refurbished, tested, and certified to look and work like new and comes with the same limited warranty as a new device.Meet the all-new Echo Dot - Our most popular smart speaker with Alexa. The sleek, compact design delivers crisp vocals and balanced bass for full sound..Voice control your entertainment - Stream songs from Amazon Music, Apple Music, Spotify, SiriusXM, and others. Play music, audiobooks, and podcasts throughout your home with multi-room music..Ready to help - Ask Alexa to tell a joke, play music, answer questions, play the news, check the weather, set alarms, and more..Control your smart home - Use your voice to turn on lights, adjust thermostats, and lock doors with compatible devices..Connect with others - Call almost anyone hands-free. Instantly drop in on other rooms or announce to the whole house that dinner's ready..Designed to protect your privacy – Amazon is not in the business of selling your personal information to others. Built with multiple layers of privacy controls including a mic off button.