Don't buy it! They may be knock offs. Read all the one star reviews. It apparently happens frequently enough with this vendor.The customer service was quick and polite, and offered a refund with no hassles, so that's a plus. But their excuse was "We buy these items directly from manufacturer's distributor as oem headsets."So, the "manufacturer's distributor" is sending knock-offs? Really? Sony's distributor is sending knock-offs? Hmmm.It's too bad, because the real ones are great little headphones.