{HEAD ~ The method} 1, comprising providing audible and visual indication on at least one of the assemblies indicating {TAIL ~ successful exchange} of the pairing information 
{ HEAD ~ The method } 1 , comprising providing audible and visual indication on at least one of the assemblies indicating { TAIL ~ successful exchange } of the pairing information
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH