This is a posable action figure from the Nendoroid series.
From the Good Smile Company web site:
B.E.E.! Full Power!
Following on from the scale figure comes a Nendoroid of Liu Li, the main heroine from the popular Chinese webcomic 'School Shock'! She comes with two face plates including her standard expression as well as a confident combat expression, and in addition she also comes with the first ever figure rendition of her helmet! Optional parts include both a pistol and a machine gun as well as an articulated B.E.E. unit. Enjoy recreating various different scenes from the series!