Digital voice signal processors; digital signal processors; telepresencerobots; gesture recognition software; computer chatbot software for simulating conversations; face recognition apparatus; intercommunication apparatus; digital sound processors; sound transmitting apparatus; humanoid robots having communication and learning functions for assisting and entertaining people; humanoid robots with artificial intelligence for use in scientific research; video screens; user-programmable humanoid robots, not configured; humanoid robots with artificial intelligence; household robots having communication and learning functions for assisting and entertaining people; user-programmable household robots, not configured