Top U.S. senator fears Big Tech at home as Alexa, Nest dominate

FILE PHOTO: Prompts on how to use Amazon's Alexa personal assistant are seen in an Amazon ‘experience centre’ in Vallejo, California, U.S., May 8, 2018. Picture taken May 8, 2018. REUTERS/Elijah Nouvelage/File Photo

WASHINGTON (Reuters) -U.S. lawmakers from both parties pressed Alphabet Inc's Google and Amazon.com on Tuesday about their smart speakers markets, amid concern over the domination of the tech behemoths in this area.

Senator Amy Klobuchar, chair of the Senate Judiciary Committee's antitrust subcommittee, noted that Amazon had more than 50% of the smart speaker market while Google had 30%, and stressed the importance of interoperability.