This is one of the most masterpiece headphone that didn't die forever, didn't change any single part yet it sounds new it lasted long, great bass, great sound, very high fidelity not even single distortion and no poor clarity thanks to Sony for making this most wonderful masterpiece headset that will cost a million dollar than today's crappy expensive headphones they are B&W, Bose, JBL....etc. If you compare other headphones like I mentioned today's expensive headphones like B&W, JBL, Bose, Sennheiser....etc they die easily and sound gets distorted but this headphone never got distorted when I used in deck when I was 5 years old and till now connected with ipod and laptop the sound quality is same that never distorted and not even single fidelity poor. And still sounds new now great Bass, perfect pitch and crystal clear sound.