Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: I purchased mine in January and one of the ears doesn't work now.  Is there a warranty?
Document: I bought two, one for my wife and one for me. I think they're perfect for the price I bought them for $9 while they were on sale. My wife's pair sound great but for some reason mine goes really low of sound in one ear. I think it's a connection issue. I know it's the unit because I own three pairs of these head phones and the other two work great.
The sound quality is the same.Beside the fact that the wires from the one I purchased on ebay which are much beefier then jlab's ear buds. They are almost the SAME IN QUALITY.Do yourself a favor and save $20 bucks on your earbuds.JLAB would have my recommendation but their customer service and warranty department dropped the ball.
I had this product for 5 months, 2 months over the warranty period and the left earbud has gone completely out. The weakpoint is where the cord meets the stereo jack. I can play around with this connection and sometimes the left earpad will work again. The sound quality matched a fifty to seventy dollar pair of ear buds but unfortunately I don't believe will last that long. Most of my earbuds have lasted about a year with this one only lasting 5 months.
I purchased two pairs  of these. One for my gf and one for me. They both work very well. Have really good sound quality, but are kinda lacking in the bass department. They stay in your ear really well also. The chord feels nicely made. I use them for my ipod when i go running and haven't heard any reduction in sound quality while in use. For what i paid for them I'm happy.
I bought my J3 earbuds a little over a year ago, and I have to say these are absolutely the best earbuds I have ever used! They fit wonderfully, they stay in my ears, I don't have to keep re-adjusting them, and the sound quality was awesome. I am however very sad to report that a little over a month ago, the right speaker blew out, and unfortunately my one year warranty was up in June.
I purchased these in January of 2010. I've primarily used them with my iPod at the gym. Sometime in May, the left earbud kept cutting out. It seemed to be a problem in the main wire. The right earbud kept playing. That's why I gave only 3 stars for durability. I am quite satisfied with the sound quality, although I am admittedly not an audiophile. They stayed in my ears, unlike the ones that Apple made.
I purchased two sets of the earbuds, one for myself and one for my husband. We ride a Harley and I like to listen to my Ipod while traveling. The JBuds were awesome for noise canceling and the sound is very clear. I am able to listen to my music without any interference from the Harley or the wind!! The earbuds come with 3 sets of inserts so I was able to find a set that fit my ears perfect!My only issue was after about 1 month one side went out.
I purchased these headphones a while back and the original headphones broke in about 3 months. On of the headphones stopped producing sound. The JLAB company was kind enough to include a 1 year warranty with their product. I claimed the warranty and they sent me a new headphone free of charge. They also included another warranty. These headphones broke again and suffered from the same issue. I have legitimately been stuck claiming warranties ever since.
The 139 people who purchased these earbuds are CORRECT. I wish i listen to their reviews instead of the other positive reviews posted on amazon.1st of all, these earbuds are cheap, They are great if you expect to replace them after a year.I ordered my pair last July and the driver on my left bud died out July 25 conveniently four days after my warranty expires.Called JLAB's  warranty department and received no help.The Company advertise that the earbuds have a "burn in" period.
The right side worked nicely but no matter what I plugged my J3s into (laptop, desktop, iPod, someone else's iPod) the left side would not work. I submitted a warranty claim at Jlab's site, and they shipped me a new pair for free. Again it arrived really quickly (which I was happy about) and this time they are perfect. They sound great and should sound even better after the burn-in.
Answer: I had a cheaper model from this company that were DOA. I filed a claim on the Jlab website and they sent me a replacement pair very quickly. I don't know how long the warranty lasts. You will need the serial number from the packaging to file the claim.