Very nice headphones, had 1 pair but left transmitter in shirt pocket and went in the wash so I am now buying another pair. As below stated don't know why things like these aren't released more often, sound quality on these seems good to me and 6 hours of battery (considering the size) is excellent in my opinion. Though they did get sore around the ears after around an hour but you should expect that with around the neck headphones. A very good point I should make is that these are VERY light and the volume controls on the right side are very convenient. Was going to buy the Motorola S9 but these look better and the overall decision was based on the fact that these came with a transmitter which could be used on anything. I have no regrets at all buying these, except for leaving the transmitter in the wash.