I can see that you're way behind on everything fishy! Mp3's are the newest type of crappie jigs, imported from Spain (the crappie capitol of the world!!!!!!) I stand in awe of the crappie info we are about to recieve!! I just can't wait! Think of all our gatherings, with us buying plane tickets for this person to give seminars on CRAPPIE!!! Fishing will never be the same!!