I noticed recently that the left side housing on my UM3X would make a clicking sound when squeezed lightly between the fingers. The sound is best described as similar to lightly pressing a soda can in and letting it pop back into shape (just much quieter). Sounds like a little "clicker". I closely examined the housing and there is no visible movement in the housing but i figured i would send it in as the warrenty period is soon to expire later this year. It wasnt really a big deal but sometimes i thought i could hear it when wearing them and moving my head certain ways. Plus, i didnt want to wait till the warranty expired and find it getts worse or falls apart. Was curious to know if anyone has had a similiar situation occur with their Westone UM3X housings.