- Amazon Echo Dot, Basics Microwave, Echo Sub: Everything Amazon just announcedCNET
- Amazon Unveils New $50 Echo Dot With Better Quality SpeakerBloomberg
- Amazon Unveils New Echo Speakers, Subwoofer, Audio Adapter, Receiver and AmplifierVariety
- Amazon Echo Sub is a plug-and-play subwoofer to boost your Echo musicPocket-lint.com
- Opinion: Smart speakers are still pretty dumb — here’s what needs to happenMarketWatch