Does the AT-RT vehicle have any interactive features?

Yes. Pressing the back lever moves the mechanical legs and side cannons, and no batteries are required.

What is included in this Star Wars ActionVerse 2-pack?

It includes an Imperial Remnant AT-RT Driver figure that is 4.5 inches tall and an AT-RT vehicle that is 8.3 inches tall.

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Hasbro Star Wars: The Mandalorian and Grogu - ActionVerse - AT-RT & Imperial Remnant AT-RT Driver Action Figure 2-Pack - G28405L00

Includes an Imperial Remnant AT-RT Driver figure (4.5 inches tall) and an 8.3-inch tall AT-RT vehicle
Press the back lever to move the mechanical legs and side cannons, no batteries required
Driver figure has 9 points of articulation and hands that attach to the vehicle's handlebars
Compatible with other 4.5-inch scale ActionVerse figures and vehicles, ages 4 and up