The Echo Dot is essentially just the top inch and a half of the original Amazon Echo. It features the same ring of far-field microphones to listen for your command, and the same Wi-Fi and Bluetooth radios to keep the virtual assistant "Alexa" hooked up to the cloud. The Echo's full-size speaker is gone, squished down into a tiny set that's about as powerful as your phone or tablet.
The Echo Dot made its debut in March of 2016 at Amazon's UX Labs in San Francisco. It's part of a growing family of Alexa devices that includes the Amazon Echo, the Amazon Fire TV, and the battery-powered Amazon Tap.
The Amazon Echo Dot costs $90 -- half the price of the original Amazon Echo. For now, it's only available in the US, but Amazon hopes to expand worldwide in the near future. That price comes out to about £65, or AU$120.