It means "you don't hear them".
The word "los" in Spanish mean "the" in English. Thus "Los Anglees" means "The Angels."
if you meant to ask what is dia los muertos, then i could answer it by telling you that it means DAY OF THE DEAD which is a celebration in Mexico where they celebrate the death of their loved ones.
Los amo a los dos= I love them both.
Good morning friends love you all