Alexa Voice Service
There are many ways to interact with Alexa - with Tap, Echo, Echo Dot, Echo Look, Echo Show, Dash Wand, and Amazon Fire TV. However, Amazon has distributed Alexa to third-party device manufacturers through the Alexa Voice Service (AVS).
The AVS Device SDK provides C ++ libraries that allow any commercial device to process audio inputs and triggers, establish persistent connections with AVS, and handle all Alexa interactions.
Alexa Skills
A skill set allows you to customize your Alexa conversation by creating your own skill. Skills are similar to third-party applications for Alexa speakers. There are over 20,000 user skills. For example, you might say: "Alexa, open Jeopardy." You need to enable it in order to use it.
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