Updated - sizing is going to be crucial for whether or not these end up working for you, in my opinion. works great. The new pair did not live up to the old pair. Sure its not as clear as the more expensive lines, but for the money well worth it. Ive purchased Lucky brand shoes in the past and found them to run large. Within 30 minutes of hanging a towel up, the hook and the towel were on the ground. They hold up very well too. The D9 unit comes already charged, so its plug and play. That being said, I read most of the reviews, size seem to be a major complaint thus I heeded the advice and ordered one size up from my normal 42. For the money, this headset is great.