Thank you Allan,
I like to include packaging in my reviews so that the purchasers can get an idea of a few things:
1) Can reveal some insight into the brand and its image
2) I often include accessories within the packaging section so its useful information for potential buyers.
3) Since some headphone companies do not offer separate cases, the packaging (box) can be used to house headphones for business trips etc or for other reasons so it is good to let users know how and what this looks like.
So I feel its relevant to an extent and no harm in adding it.