Remote and Smartphone App: The motorized train features two control options: a handheld remote and Bluetooth app control, both modes are user-friendly, with intuitive operation for seamless play Authentic Design with Functional Components: The set includes a detailed SD40-2 diesel locomotive, cargo containers, a semi-trailer, and a working crane, realistic moving parts enhance the building experience and play value. SD40-2 Diesel Locomotive Model: Trains have played a vital role in global transportation history. This building set combines creative block play with the engineering legacy of combustion locomotives, offering an engaging way to explore mechanical design. Dimensions for Interactive Play: Train size: 60.8 cm (23.9 inches) long × 10.7 cm (4.2 inches) wide × 6.6 cm (2.6 inches) tall. Oval track measures 117 cm (46 inches) long × 70 cm (27.5 inches) wide, providing ample space for operation Educational STEM Building Challenge: Designed to inspire creativity and problem-solving, this set encourages hands-on learning, spatial reasoning, and fine motor skills through realistic mechanics and modular assembly. Mould King Train Set, Locomotive Trian Sets Building Toys,12027 Construction Toys Remote Control Train Models Building Blocks, RC Train Toys Model Trains for Adults Kids 14+(1170 PCS)