The ESP Guitar Company

Hi,

I'm really sorry to ask this question since it might sound a bit stupid, but I just can't figure out the use of the Mini Toggle Switch on the black ESP Snapper ESP Original Series. It has a P/P-Tone Switch, which is - I suppose - used to split the humbucker - but why is there an extra switch then? Does it exactly the same or what purpose does it have? Would really like to know as it's quite hard to find informations about the ESP Snappers online. Thanks for your help.