Bulldozer Toys for Boys,Construction Remote Control BulldozerMulti function operationThis RC construction vehicles has 9 channels and uses 2. 4GHz frequency, which can realize multiple operation functions, such as forward, backward, left turn, right turn, and lifting and lowering operations of the bulldozer arm. Delicate and Realistic RC Bulldozer Construction Toy The remote controlled bulldozer is designed with a simulated cab, hydraulically liftable metal bulldozing shovel, metal ripper. tracked wheels,