Water Resistant Shiny Neon Fanny Bag for Women Rave Festival Hologram Bum Travel Waist Pack (Silver)

is there an extender belt for this product?

Does this have a hole for earbuds?

Is this roomy enough at the top of the bag and the side can you fit a long wallet and keys and phone in there at one time

how many 16 oz bottled waters can it hold?