Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Impossible Fit

I guess these were designed for a certain type of ear. I've worn all sorts of buds and sport headphones and wanted to try Sennheiser because of their reputation for quality. Well, I just can't get these to fit well.I've tried all the "fit kit" pieces and nothing makes them fit well. They're very comfortable, but they fit so poorly I have to turn the volume way up on my player and even then the sound is just fair (and by player's battery drains faster).The "manual" is a joke. There are a couple diagrams and no useful information. They could have saved a few trees and not bothered with it.I'm back to using my seven dollar Sony headphones for the gym. Sigh.