Excellent phones with more than adequate base and excellent mid and treble performance. As with all buds they need to be correctly inserted or sound "tinny". The bud part (that goes in the ear canal) is slightly angled (like Shure phones) so slot in nicely, with practice, rather than having to be jammed in like some similar buds.
The only downside was the packaging - hence 4 stars - a simple bag with part number sticker rather than what you would get in a shop. This may be a problem if they were to be a gift, but I guess this is how the price is kept so low. Certainly great from a green angle though as no hideous plastic impossible to get into without stanley knife bubble. Overall an excellent purchase.