Summary: I had these a while back. I'd fallen in love with "canalphones" as we called them, thanks to Sony's "Nude EX" back in the MiniDisc days. I went through a couple pairs of them, always losing the silicone tips.
Summary: Nothing much to say. Cheap, slightly better sound quality than average stock phones. Most reviews said they are equal or even better than Sennheiser CX300, but my experience tells a different tale. Only 13£ (~20USD) paid so nothing special was expected.