First of all, Pronunciation Training is not for beginners. You must have at least a basic command of the language before working on your pronunciation, so a B2 level or higher is necessary.
And to answer the question, most traditional English teaching programs focus on grammar, vocabulary building, written skills, etc., but do not focus on pronunciation or speaking skills. Pronunciation Training is all about SPOKEN English, that is, pronunciation, prosody and oral communication skills. Assistance with grammar and vocabulary is provided if needed, but the focus is the nuances of spoken English for clear and effective oral communication.