Amazon Prime members can get the Amazon Fire TV Cube for $69.99 with free shipping at Amazon. You must be logged into your Prime account to see the discounted price. If you are not a member, you can sign up for a free 30-day trial. That's the best price by $10. The Fire TV Cube is a media streaming device that is entirely voice controlled using Amazon Alexa. It also works like any other echo device, and it can control things such as smart lighting systems. It supports 4K HDR content and has a built-in web browser. Sales tax is charged in most states.