okay, i was a bit jaded after my purchase of a trainer so i'll just mention this. despite the box saying how quiet it is, the blackburn mag trainer i bought is very loud. the highpitched whine goes though the walls and is very annoying for all that live there. if you live in an apartment with roommates, make sure you buy something very quiet for their sake. unless you hate them. if that's the case....get a blackburn mag trainer.