Evo is a perfectly matching portable battery base for Amazon's Echo Dot. If you have an Amazon Echo Dot, you know how useful it can be. I have one at home and at the office. SWMBO and SWSWBO have several and use theirs to order supplies for the house, and play their tunes. I use mine to get the news and to play tunes. However, what if I want to travel with one? Carrying a power adapter is a pain, and it would be nice if these things were battery powered. Enter the Evo, which is a matched portable battery base for the Dot. Now, you can be in a hotel room anywhere, and still talk to your computer. Of course, Google Voice can do the same thing with your phone; but, Alexa is cool, too. Alexa, order an Evo please.