Thank you for viewing! It's in beautiful condition with little use. Operation has been confirmed. I will ship it with new batteries installed. The following is quoted from the website: Jurassic World Super Battle Attack T-Rex By repeatedly pressing the button, it shakes its head up and down and goes wild! The T-Rex's teeth extend to twice their size and it roars. Its mouth opens wide, allowing it to perform the action of eating mini figures. It supports the free app "Jurassic World Play" that works with figures, and you can collect dinosaurs by scanning the DNA code with your smartphone. Product number: 7804393 Manufacturing number: HXF53 Brand: Jurassic World Barcode: 194735228263 Product size - Width (cm) x Height (cm) x Depth (cm): 54, 21, 10 Package size - Width (cm) x Height (cm) x Depth (cm): 55.9 x 25.4 x 11.4 Weight (kg): 0.5 Required batteries: Yes Batteries included: No Number of LR44 button batteries used: 3