I love these headphone ! I have be use these for a year and a half and I just can not get enough of they . I buy a pair brand new about a year and a half ago , and about a month ago one of the side stop work . so I simply contact the customer service and the woman I talk to be very kind and curtious and help I through the short process of return the broken item . luckily I keep the box and see that they come with a 2 year warranty so they gladly ship I a new pair . all I need be my digital recipt . I love these headphone and they have great sound quality and last I a long time , because I use they every day . so I very much recommend these to my friend .