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