What are Amazon Echo and Echo Dot?
Amazon Echo, developed by amazon.com, is a hands-free speaker you control with your voice. Echo connects to the Alexa Voice Service to play music, provide information, news, sports scores, weather - even your energy - instantly. All you have to do is ask!
Echo has seven microphones so it can hear you from across the room - even when music is playing. Echo is also an expertly-tuned speaker that can fill any room with 360° immersive sound. In order for Alexa Voice Service to work, Echo has to be connected to the internet.
Echo Dot uses the same 'far-field' voice recognition as Amazon Echo. Dot has a small built-in speaker and can connect to your speakers via Bluetooth or with the audio cable included.