{TAIL ~ The electronic device} has a speaker, alarm lamps and a level meter and can transfer {HEAD ~ data} wirelessly 
{ TAIL ~ The electronic device } has a speaker , alarm lamps and a level meter and can transfer { HEAD ~ data } wirelessly
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH