toy car one-click deformation tank military model will walk and with robot boy birthday Christmas gift About this Automatic deformation function: walks for certain distance, it will automatically deform the robot form, and travel certain distance to return to form. The novel function makes boys it. universal driving: universal guide wheels are set at the bottom of, and the tank will travel the ground both forms. Automatic obstacle avoidance and turning: When is running, if it encounters obstacle, it will automatically turn to the other direction. The function is practical. Dazzling lighting: There are many built- LED lights, which will dazzling lighting effects when driving at night, making it even more eye-catching to at night. sound effects: has built- speakers, which sound effects while driving, and corresponding deformation sound effects will be emitted during the deformation process. Note: This product needs to use three AA batteries to open the bottom battery slot, install the three batteries according to the positive and negative poles, and close the lid. Specification: Product name: deformation tank Applicable age: 3 years old and above Use batteries: three AA batteries Product Size: Robot form: 14X15X22CM Tank form: 19.5X10.5X11CM Product List: 1X Deformation Tank Toy