Make your Echo Dot portable with the Mission Battery Base. The Echo Dot Battery Base is specifically designed to work with Echo Dot (4th & 5th Gen). Enjoy your music away from the power outlet with integrated battery lasting up to 5 hours. Not compatible with other generations of Amazon Echo Dot or the larger Amazon Echo. Echo Dot sold separately. | Amazon | | Echo Dot Battery Base for 4th and 5th Gen Echo Dot | White | Best Buy