Assemble and disassemble the truck continuously using the electric screwdriver. Choose to place the shovel or bucket. The screwdriver turns into a controller and controls the truck that turns into a remote control! Sound functions: machine noise and sound effects when controlling the movement of the vehicle. Includes: 1 truck for construction, 15 screws including 2 spare, assembly instructions. Requires 2 LR06 batteries not included in the remote control and comes with a rechargeable USB cable.