The Ninety7 Battery Dock is specifically designed for the Amazon Echo 2 (2nd generation) smart speaker. This dock features a carbon-colored fabric that is acoustically transparent, allowing for clear sound quality while protecting the speaker. It includes a non-marking silicone base for stability, easy access to the Aux out port, a convenient carry handle, and a power button for convenience. The Ninety7 Battery Dock is a practical and stylish accessory for keeping your smart speaker powered and ready to use at all times.