From the Hatsune Miku: Project DIVA MEA 39 video game, it's a new figure from the FiGURiZM series. Miku is wearing a super cute outfit and is in a very dynamic pose.
She stands at about 8.6" tall.
Hatsune Miku, codenamed CV01, is considered the most popular and well known VOCALOID, and the first to become a pop idol. The name of the character comes from merging the Japanese words for first (hatsun), sound (ne), and future (miku), thus meaning “the first sound of the future, referring to her position as the first member of Crypton’s “Character Vocal Series.”