Furthermore, the button 5 has {HEAD ~ an improved ergonomic design} which is less prone to damage by {TAIL ~ external forces} 
Furthermore , the button 5 has { HEAD ~ an improved ergonomic design } which is less prone to damage by { TAIL ~ external forces }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL