Almost everyone in this thread is handicapped:
A. You don't want to spend less than $50 on headphones
B. Earbuds are pieces of loving stuff, don't buy them and they are NOT worth it.
C. I see no specification discussion here, what the hell is with you guys
Go Sennheiser anyways, if you insist on getting low-price 'phones. DO NOT BUY EARBUDS.