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