This is a posable action figure from the Nendoroid series.
From the GoodSmile website:
"You really are an idiot!"
The long awaited Nendoroid of the Hatsune Miku spin-off character Kasane Teto is finally here! Even her trademark drill-shaped twin-tail hair has been faithfully preserved on her Nendoroid!
She comes with both a smiling expression as well as a sneering expression, and her beloved French bread as well as a panzerfaust-shaped microphone are also both included allowing fans to enjoy all sorts of poses from Teto's popular songs and more!