BlockTalker is a hands on AI learning platform from IoTED Corp., combining a LEGO compatible generative AI speaker with a companion app. Students build characters, design chatbot roles and prompts, then speak with their creations. This turns AI into collaborative physical learning that develops AI literacy, critical thinking, creativity and communication. Teachers create custom chatbots and manage students, devices, content and usage through a dashboard. It supports language learning, debate, science, mathematics, social studies, AI ethics and prompt engineering across K 12 education, with multilayer content filters and administrator controls. Its vendor independent Voice AX platform integrates STT, TTS, LLM and RAG, bringing voice AI to devices with limited computing power and extending the technology to toys, tourism and senior care. BlockTalker has been deployed in more than 100 Korean schools and reached more than 300 educational institutions. The core technology also powers a RAG