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 range of sets powered by the LEGO SMART Play™ system, this All-In-One Set includes all SMART Play components – a SMART Brick and charger, a LEGO SMART minifigure and a SMART Tag – enabling responsive play, dynamic lights, sounds and more. Hear roaring engines as the TIE Fighter is launched and swooshed in different directions. Bring SMART Darth Vader to life. Dodge incoming fire from the Rebel outpost. Pull the trigger to activate laser-shooting sounds. Refuel and repair the iconic  Star Wars vehicle at the Imperial fuel station. Add SMART Play Compatible Sets (sold separately) for more interactive play options. Help children get started, troubleshoot, control sound levels and download updates for enhanced SMART Play action with the LEGO SMART Assist App. A top  Star Wars  gift for boys and girls ages 8 plus, this set contains 473 pieces. INTERACTIVE BUILDING TOY – The  Star Wars ™ galaxy plays back with Darth Vader’s TIE Fighter (75421) All-In-One Set, powered by the LEGO® SMART Play™ system, with a SMART Brick and charger POWER UP THE TIE FIGHTER – Place the SMART Brick on the SMART Tag in the starfighter for motion-activated engine sounds and lights, laser-shooting, refueling and repair sounds LEGO® SMART STAR WARS™ MINIFIGURE – Bring SMART Darth Vader to life with the SMART Brick for immersive play, triggering reactions to situations he experiences BUILT FOR IMMERSIVE PLAY – Refuel the TIE Fighter at the fuel station, attack with Darth Vader’s Lightsaber™ and help the Rebel Fleet Trooper defend the Rebel outpost with its dual stud shooter GIFT FOR KIDS – Boys and girls ages 8 and up who love  Star Wars ™ can enjoy screen-free action play with this exciting set that’s great for solo play or battling with friends LEGO® SMART ASSIST APP – Help children unlock more from the SMART Play™ system with the SMART Assist App; get started, troubleshoot, control sound levels and download updates for enhanced play MIC DROP – This LEGO®  Star Wars ™ set includes a deactivated, built-in microphone for potential future play features; activation will require both your permission and a firmware update DIMENSIONS – The TIE Fighter in this 473-piece set measures over 4 in. (10 cm) high, 4 in. (11 cm) long and 5.5 in. (15 cm) wide; SMART Brick battery life is approx. 45 minutes per charge