updates the Echo Lineup and Introduces the Echo Sub, a sub-woofer for your Echo devices - Tech Raman

Echo Sub review: Echo Sub is $130, turns Echos into a 2.1 system - CNET

unveils the Echo Hub, a wall-mountable smart home controller with an 8-inch touchscreen, and Map View, an Alexa app interface for users' floor plans. - GIGAZINE

Echo Sub Review: An Affordable Subwoofer for Compatible Echo Devices

A Week With The New Echo Plus & Echo Sub

Echo Sub - Powerful subwoofer for your Echo - requires compatible Echo device : Devices & Accessories

Echo Sub - Powerful subwoofer for your Echo - requires compatible Echo device : Devices & Accessories

Echo Sub Review

updates the Echo Lineup and Introduces the Echo Sub, a sub-woofer for your Echo devices - Tech Raman

Cyber Monday Now Live! Echo Sub - Powerful subwoofer for your Echo - requires compatible Echo device

Echo Sub Review: Alexa, Goes Boom!