Introduce kids to the LEGO Star Wars galaxy that plays back with this interactive building toy, featuring Darth Vader's TIE Fighter (75421). Part of a series of sets powered by the LEGO SMART Play system, this all-in-one set includes all the SMART Play elements: a SMART brick and charger, a LEGO SMART minifigure, and a SMART tag for interactive play with dynamic lights and sounds, and more. Hear the roar of the engines as the TIE Fighter launches and zooms in different directions. Bring SMART Darth Vader to life. Dodge the incoming shots from the Rebel outpost. Flip the lever to activate the laser sounds. Refuel and repair the iconic Star Wars vehicle at the Imperial fuel station. Combine with other SMART Play sets (sold separately) for more interactive play possibilities. Help children get started, solve problems, control the sound level, and get updates for SMART Play activities with the LEGO SMART Assist app. - The Star Wars galaxy returns with this all-in-one Darth Vader's TIE Fighter (75421) set, powered by the LEGO SMART Play system, featuring a SMART brick and charger. - Place the SMART brick on the SMART tag in the starfighter for motion-activated engine sounds and lights, laser battles, and refueling and repair sounds. - Bring SMART Darth Vader to life with the SMART brick for an interactive play experience as he reacts to the situations he encounters. - Fuel up the TIE Fighter at the refueling station, attack with Darth Vader's Lightsaber, and help the Rebel Fleet Trooper defend the Rebel outpost with his dual stud shooter. - Boys and girls aged 8 and up who love Star Wars can enjoy screen-free action with this exciting set, perfect for solo or group play. Help children get more out of the SMART Play system with the SMART Assist app: get started, troubleshoot, adjust the volume, and download updates. - This LEGO Star Wars set includes a deactivated built-in microphone for potential future play features; activation requires both your consent and a system update. - The TIE Fighter in this 473-piece set measures over 4” (10cm) high, 4.3” (11cm) long, and 6” (15cm) wide. The SMART brick battery life is approximately 45 minutes per charge.