Amazon Echo Plus (Newモデル)の音質がGood!外部出力/入力も出来て便利! - ガルマックス
Amazon.co.jp: Amazon Echo Plus: Tips and Tricks on How to Control Your Home Using Echo Plus, Look, Tap, Spot, Dot, Show and Alexa (USER GUIDE 2018 UPDATE) : Burtner, Rich: 洋書
Klang im Test: Amazon Echo, Echo Dot und Echo Plus im Audiovergleich