Various arrangements of components within {HEAD ~ the device} are possible, and {TAIL ~ elements} such as filters can be accommodated 
Various arrangements of components within { HEAD ~ the device } are possible , and { TAIL ~ elements } such as filters can be accommodated
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH