I love these headphone . when I be in the room with the transmitter , they sound be as good as good wire headphone . that say , they be on the big side -lrb- compare to wire headphone , and I do get interference when I walk around we apartment -lrb- the old building have a lot of brick and steel -rrb- . they also hold a charge as long as I have need they , and seem to charge quickly . construction seem solid - I expect they 'll hold up over time . -lrb- I have now own these for two month , btw -rrb-