I got mine on the exact shipping day, so I started off happy, but that was short-lived. As soon as I got them out of the box and tried them, there was a problem with the jack. The sound would get all static-y whenever the jack was twisted in my device the slightest bit. I contacted Massdrop and they directed me to the Optoma Customer Service. I ended up getting another pair shipped to me after over a month. My replacement pair lasted me about 3 months, and after that, the same problem began happening and eventually the left driver just died all together. I am going to return these again and hopefully get my money back.