What I noticed that a lot of questions are never answered completely,
and sorry to re-post them, because I'm so curious to know what's for?
It's about the
two arrows in down, it move and change there position on mouse clic,
and the red Led can light, but no info found about them !
piston79 if i'm wrong correct me! and direct me to needed info!
thank's max2012 for pic's!
