Echo Sub will be a Subwoofer for Echo According to Pocket-Lint, New Products to be Announced Today

announces new Echo Sub — A subwoofer accessory for the Echo and Echo Plus

Echo Sub review: All about that bass and we're delighted Review

leak reveals upcoming Echo subwoofer and smart plug - The Verge

Echo Sub And Smart Plug Leak As Part Of Alexa Product Expansion

s new products 'Echo Sub' and ' Smart Plug' information will be released before the announcement - GIGAZINE

Echo Sub Review: Alexa Brings the Bass

Takes Top Spot in Smart Speaker Sales in Q2 2018 Says Strategy Analytics, but Google Home Mini Was top Device

Echo Sub review: All about that bass and we're delighted Review