This was a special badge handed out in 2011 to Blizzard employees attending the holiday party.

The badge is laminated. Plain black lanyard included (no branding).

The back of the badge shows what events were held at the party. This is blurred for the sale but the person who purchases this item will get to see what events the Blizzard employees were able to attend. Phone numbers are also blurred for the posting but are visible on the badge. Doubt they are active but who knows.