Contrary to the prior review I have found this to be a very good headset. I have it paired with an LG CU500 phone and enjoy the features. The first thing the prior reviewer needs to do is read the instructions as the button presses are not immediate responses. Holding the button for different amounts of time results in different actions which are accompanied by notifications through the in ear speaker. The device is very small and compact with above average sound quality. The in ear device loop IS adjustable as the ear hook can be turned for use in the left or right ear and moved to the right or left for positioning. It may just be my ear but it was not complicated at all and the only way it would fall out is if I had the hook positioned on the wrong side of the speaker ( also indicated in the instructions ). The only faults I really see are with the charging connection which isn't clearly labeled as "insert this side up" so you have to fiddle with it to seat the charging connection. Overall it is one of the better devices I have used and I like it better than the Jabra I had before as it is much easier to attach and weighs alot less.