It passed certificate of CE.UL.RoHS,ISO9001-2000.Easy to be adjuste
Easy to operate.It can be control by remote device.

Unfold Projectin Screen

   The self-locking screen has its own self-locking device. The screen would contract upward  slightly then stop and lock in the selected position on automatically. If you pull the handring, pull the screen slightly and stop at the  required height then let go.

Retreat Projection Screen

  Retreat projection screen:  Self-locking system would reposition if you pull downward the screen and pull gently.  Slightly grab the handring and let it go until all the screens return to the housing.