The controller may provide direction and amplitude control, vibration control, and {HEAD ~ frequency control} to direct {TAIL ~ the haptic experience} 
The controller may provide direction and amplitude control , vibration control , and { HEAD ~ frequency control } to direct { TAIL ~ the haptic experience }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL