The tutorial delves into creating a voice-automated stock trading bot called TradeBot, using IBM Watson Text-to-Speech service and PubNub's real-time data streaming network. TradeBot operates by analyzing stock price updates and delivering audible alerts when prices cross predefined thresholds, with male and female voices indicating different levels. The system employs Node.js for scripting, IBM Bluemix for text-to-speech conversion, and PubNub for message publishing and subscribing. Functions, a serverless microservice, manages the orchestration of client requests and speech synthesis, simulating stock market environments due to the absence of real-time feeds. Enhancements could include periodic price updates and integrating real stock feeds, highlighting the application’s potential for traders and vision-impaired users, and encouraging further development of voice-enabled applications.