Difference between VAR and ECN brokers

What is VAR and why some people say its better than ECN if you are a begginer? Only difference that I know are that VAR doesn’t have commissions. Or it does?

I haven’t met such accounts in any company I used to work with. What on earth are these accounts? O_O

I meant brokers

I never heard about VAR brokers and even can`t find information about it in the internet.
Where did you heard about it?