Delivery was long (2 weeks) but it was worth the cost! The FX is perfectly compatible with my iPhone 3GS but does not work at all on my Galaxy. But hey okay I wanted to part with, so it is good! The finish well, superb sound. The maintenance on the ears very well. I wear it in the TGV on the line Niort-Paris and no harm to the ears. It is very well isolated from neighbors or waffle crying kids or cry. It is small and fits perfectly in my bag. Really good this one fault helmet, so I have to find one missing a small cover to protect it!