Enamel Pin - "Evil Hacker"
Japanese Kanji meaning is "Aku" or "Evil"
Japanese Katakana below Kanji reads "HACKER"
 
Size : approximately 1" x 1.75"
Color: Black, Red
Limited 2023 version
 
Looks great on your backpack or classy on your tie or lapel.  Metal with rubber mount on back.