Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wait about 30 days.

Wait about 30 days. You'll loose sound out of one ear, or the mic and mic button will stop working.I'm on my second set and amazon won't take another replacement.They're great earbuds in theory. Good Sound, blocks out noise. I like the over the head. But the Quality of the wires make this a poor buy.I do like them, when it works. but it breaks too easilyUnfortunately they're the only IPhone earbuds under $20 I've seen at Amazon.I may buy these again, but with the replacement warranty.