The present invention relates to synchronized vibration devices that can provide {TAIL ~ haptic feedback} to {HEAD ~ a user} 
The present invention relates to synchronized vibration devices that can provide { TAIL ~ haptic feedback } to { HEAD ~ a user }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD