Depending on {TAIL ~ the shape} of the space or the area to be secured, {HEAD ~ the user} can adjust the optical arrangement 
Depending on { TAIL ~ the shape } of the space or the area to be secured , { HEAD ~ the user } can adjust the optical arrangement
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH