To be honest, I was nervous about buying this due to the lack of reviews and the fact that it had no connect button and relied on it simply working. Well, no need to fear, it did simply work. It connected to my Sony MW600 in a matter of seconds and has not faltered. It's tiny, looks great, contacts perfectly with my iPod Classic, and both units connected together fit well inside all of my various carrying cases (armband when cycling, iPhone-sized case when walking, etc. My only fear now is losing the damn thing as it's so small!