The Calliope mini class set - GSG 2 XL is a comprehensive learning kit specifically designed to promote technical and creative skills in children. It includes 40 Calliope 3.0 mini starter boxes, providing learners with a user-friendly platform to acquire programming and electronics knowledge. The set also contains 20 moisture sensors and 20 ultrasonic distance sensors, enabling users to realize various projects and gain hands-on experience in sensor technology. Power can be supplied via USB or battery operation, offering flexibility in usage. The board supports additional connections like SPI, making it easier to expand and customize projects. This learning kit is ideal for use in schools or groups to encourage collaboration and shared learning. It offers an exciting way to introduce children to the world of technology and unleash their creativity.