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David Limp, senior vice president of Devices and Services at Amazon, smiles as he displays a new Amazon Echo during an event announcing several new Amazon products by the company, Sept. 27, 2017, in Seattle. Amazon says it is cutting the price of its Echo smart speaker, improving the sound quality and upgrading its appearance with six new "shells." The next generation speaker, which is powered by Amazon's Alexa voice assistant, will have a dedicated woofer and a tweeter for the first time, as well as Dolby sound.