Alter Aeon FAQ (Frequently Asked Questions)

FAQ 2.16 - Equipment Transfers

Equipment that is bound to a player or to an account may be temporarily
unbound so that it can be sold to another player.  Before the other
player can use it, the item must be rebound to that player or, if the
item was an account bind item, to the player's account.

If you have an extremely powerful item that you wish to sell, you may
be able to unbind it with the 'credit buy unbind' command.  Not
all items can be unbound.