let's be honest, if the noozle is short, they are pretty much crap, and that is what I think about the blon bl-03, which gave me just another lesson that internet reviews are mostly useless in some cases. it has no bass, as it can't seal, tested them with all single and double and triple and foam eadtips, from spinfit, from sony, generis... my crappy 40€ sony fit so much better with any eartip of my size... blon are heavy, connection to cable is a joke really, like in most iems i guess. This whole chifi thing... I don't know man, I don't know... they sounded better than the cheap sony, lot of detail, flat... bass lacking, a lot, no matter what people say, mine had a huge lack of bass, sealed or not sealed... and a very cool sound voice, not warm really, not v shaped neither, flat-cool tiimbre.