Amazon's cheaper Echo Dot improves voice recognition, available in black and white

Amazon launched its Echo Dot device earlier this year, but it has been sold out in recent months. While the original Echo Dot was priced at $89.99, Amazon is unveiling an all-new Dot today that's priced at just $49.99. Just like the previous Dot, you can use the tiny puck-like device to add the Alexa voice assistant to existing speakers. Amazon is releasing the new Echo Dot in both black and white, with a more powerful, completely redesigned voice processor. The updated Dot will be availabl