【This item is junk】 There isn't much noticeable dirt. It worked with batteries last year, but now the connection is poor and it doesn't turn on. There is a USB port, but I've never used it, so I don't know how to use it. Please understand and purchase. - Color: White - Shape: Spherical - Battery type: AA batteries x 4 - Hook: Removable hook - Internal structure: Equipped with LED light Thank you for looking.