Item Megaphone

How does it work? Do you choose any item? Or anyone that you are equipped with? Or anyone that you have in your inventory?

Here's a SS of an item mega in use (MSEA):

For a moment there i thought someone really used a item mega on a Red Miniskirt til i realised it was a GM In the mega it says [Red Miniskirt]. I dunno, u type the item in the [ ] or as Rayquaza2233 said, drag the item into a window? oO