Are these good headphones? No they are not. They are flimsy and battery life is not as good as the 200s or newer 310s.
But these are cheap headphones. And by Golly, if you're not cheap then what the hoof are you doing on this website?
Honestly, the sound is acceptable, and for this price I can take a chance. I will probably try and reinforce them with some duct tape before use. At least if they fall off while I am on my bike I wont mind so much.