回声点（第二代）是一个免提的，语音控制的设备，使用Alexa播放音乐，控制智能家居设备，提供信息，阅读新闻，设置闹钟和更多
通过蓝牙或3.5毫米立体声电缆连接扬声器或耳机，以播放亚马逊音乐，Spotify，Pandora，iHeartRadio和TuneIn的音乐
通过WeMo，Philips Hue，Samsung SmartThings，Nest，ecobee和其他设备兼容的连接设备控制灯，风扇，开关，恒温器，车库门，喷水头等
听到你从房间的7远场麦克风免提控制，即使在嘈杂的环境或在播放音乐
包括一个内置的扬声器，所以它可以自己工作作为一个智能闹钟在卧室，厨房助理，或任何地方，你可能想要一个语音控制计算机
总是变得更聪明，添加新功能，以及数以千计的技能，如Uber，Domino的，和更多
Amazon Echo不需要使用回显点

Echo Dot (2nd Generation) is a hands-free, voice-controlled device that uses Alexa to play music, control smart home devices, provide information, read the news, set alarms, and more
Connects to speakers or headphones through Bluetooth or 3.5 mm stereo cable to play music from Amazon Music, Spotify, Pandora, iHeartRadio, and TuneIn
Controls lights, fans, switches, thermostats, garage doors, sprinklers, and more with compatible connected devices from WeMo, Philips Hue, Samsung SmartThings, Nest, ecobee, and others
Hears you from across the room with 7 far-field microphones for hands-free control, even in noisy environments or while playing music
Includes a built-in speaker so it can work on its own as a smart alarm clock in the bedroom, an assistant in the kitchen, or anywhere you might want a voice-controlled computer
Always getting smarter and adding new features, plus thousands of skills like Uber, Domino's, and more
Amazon Echo is not required to use Echo Dot