Up to this point, {HEAD ~ this sequence} is essentially describes {TAIL ~ Bluetooth} 1.0 operations  
Up to this point , { HEAD ~ this sequence } is essentially describes { TAIL ~ Bluetooth } 1.0 operations
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH