This is the Diecast Masters Caterpillar 745 Articulated Truck 1/24 RTR

Features:
Full function radio controlled
Frequency: 2.4G
Light and sound functions
Auto demo functions
Individual RC movements of front arm, rear arm, buckets,and rotation of body
Long play time
Authentic scale model
Lithium-battery 700mAh
2 x AAA for controller (included)

Specifications:
Size: 24 x 13.5 x 15 in.