Amazon Echo speaker, Alexa, Amazon Alexa devices, Alexa voice-activated assistant launch at $99.99 via Amazon.com

A slew of new Echo-branded devices are being announced on Wednesday, as Amazon Echo and Amazon Alexa will officially launch for just $99 (and, yes, they will come with a microphone).The Echo Dot will be the first new Echo device to hit the market since the Echo Dot went on sale in April 2018.The Echo Dot is Amazon's answer to the popular Echo device, the Echo Show, which was announced back in 2016...