Building a Mini Stirling Helicopter Assembly DIY Kits STEM Model RC Engine Brand_ROFUN Engine Voltage: 3V~5V

Voltage: 3V~5V

Flying Weight: 480g

The voltage display will display the real-time voltage

out-of-control protection

Building a Mini Stirling Helicopter Assembly DIY Kits STEM Model RC Engine Brand_ROFUN Engine Voltage: 3V~5VBuilding a Mini Stirling Helicopter Assembly DIY Kits STEM Model Features: . Innovative Stirling Helicopter Model Kit: Enjoy engineering marvels with this Stirling engine helicopter model kit, combining the charm of helicopters with the creativity of engine technology, offering an educational and entertaining experience for all ages. . Interactive Learning Experience: Master deep insights into thermodynamics and mechanical engineering principles while