Push & Go Train - This LEGO DUPLO set features a train toy for toddlers with Push & Go functionality, Light and Sound, action bricks, and 16 track pieces

Figures and Accessories - Includes train driver, child LEGO DUPLO figures, squirrel figure, refueling can, suitcase, bread, and spade accessory elements

Free App Control - Parents can download the free app for toddlers to use the train toy's remote control function, activating lights, sounds, and movement

Colorful Action Bricks - Kids can place different colored action bricks around the track to signal the train to sound the horn, turn on the lights, or change direction

Expandable Train Sets - This set easily combines with the (10875) Cargo Train and (10882) Train Tracks for more track combinations and fun with LEGO DUPLO Train Toys

Checked manually, did not download the app but, it does exist. So not tested it. It’s all there but the box and manual. Light comes on underneath. Choo choo’s and whistles. Refuel sound & reverses. And stops. Takes 4 AAA batteries (not included). On/off button on bottom.