Many types of useful devices may then be attached to the platform including {HEAD ~ devices} that require external power or devices that possess their own power and are operated via {TAIL ~ wireless signals} 
are operated via
Many types of useful devices may then be attached to the platform including { HEAD ~ devices } that require external power or devices that possess their own power and are operated via { TAIL ~ wireless signals }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL