This is a posable action figure from the Nendoroid series.
From the Good Smile Company website:
From the SEGA feat. HATSUNE MIKU Project's "Hatsune Miku -Project DIVA- X" comes a Nendoroid Co-de of the conspicuous "Raspberryism" module! The rich colors of the module that give her the energetic appearance she is known for have been faithfully included in the design, creating a Miku who is rather different to the one we normally see. A unique design for fans to add to their Co-de collection!