Does ezV teach Vietnamese of Northern accent or Southern accent?

At the moment, ezV courses comprise of the Southern Vietnamese accent. If you want to learn the Northern Vietnamese accent, you will have to specifiy that need to your tutor. The major difference between Southern accent and Northern accent is the pronunciation and the use of some words. It does not affect your communication ability whether you learn to speak with a Southern or Northern accent because the Vietnamese locals can understand both these accents. After finishing the course, you can confidently communicate with Southerners and Northerners.