https://www.theverge.com/2018/9/20/17883310/new-amazon-echo-input-2018-alexa-features-price-release-date-bluetooth

Amazon is introducing a small new device that you can plug into any existing speaker to turn it into an Echo. It’s called the Echo Input, and it includes far-field microphones on it just like a normal Echo would. But instead of including its own speaker, it’s supposed to plug into or pair with another speaker, so that Alexa gets added to an audio setup that’s already in your home.

The device will sell for $34.99 and launch later this year in the US, UK, and Germany. Amazon also says it’ll be bundled with some third-party speakers, including Bose, allowing customers to turn them into smart speakers straight out of the box.