Cobbled from odds and ends in the workshop of a droidsmith, D-O is an impressionable little roller that becomes fixated upon BB-8! The ULTIMATE D-O INTERACTIVE DROID lets kids and fans display and play with a replica that has a self-balancing wheel, multiple modes of play, moving head and antennas, and features light-up LED eyes, sound effects, and premium deco inspired by STAR WARS: THE Rise OF SKYWALKER. Drive D-O around using the free downloadable app, or play in one of multiple modes, whether D-O is resting in the included docking station or rolling around on the floor! When using the ball, Ultimate D-O will play in Follow Mode and Chase Mode. This interactive droid has premium deco, so it looks great on shelves while displayed in the docking station. With the ULTIMATE D-O INTERACTIVE DROID, bring the fun and magic of the STAR WARS saga home! Includes droid, ball, USB charge cable, and removable docking station. Requires 1 3.7V 500mAh LiPO battery, included (non-replaceable). Also requires 2 1.5V AAA batteries.